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free-for.dev

Developers and Open Source authors now have a massive amount of services offering free tiers, but it can be hard to find them all to make informed decisions.

This is a list of software (SaaS, PaaS, IaaS, etc.) and other offerings that have free tiers for developers.

The scope of this particular list is limited to things that infrastructure developers (System Administrator, DevOps Practitioners, etc.) are likely to find useful. We love all the free services out there, but it would be good to keep it on topic. It's a bit of a grey line at times so this is a bit opinionated; do not be offended if I do not accept your contribution.

This list is the result of Pull Requests, reviews, ideas and work done by 1100+ people. You too can help by sending Pull Requests to add more services or by remove ones whose offerings have changed or been retired.

NOTE: This list is only for as-a-Service offerings, not for self-hosted software. For a service to be eligible it has to offer a free tier and not just a free trial. If the free tier is time-bucketed it has to be for at least a year. We also consider the free tier from a security perspective, so SSO is fine but I will not accept services that restrict TLS to paid-only tiers.

Table of Contents

Major Cloud Providers

  • Google Cloud Platform

    • App Engine - 28 frontend instance hours per day, 9 backend instance hours per day
    • Cloud Firestore - 1GB storage, 50,000 reads, 20,000 writes, 20,000 deletes per day
    • Compute Engine - 1 non-preemptible e2-micro, 30GB HDD, 5GB snapshot storage (restricted to certain regions), 1 GB network egress from North America to all region destinations (excluding China and Australia) per month
    • Cloud Storage - 5GB, 1GB network egress
    • Cloud Shell - Web-based Linux shell/basic IDE with 5GB of persistent storage. 60 hours limit per week
    • Cloud Pub/Sub - 10GB of messages per month
    • Cloud Functions - 2 million invocations per month (includes both background and HTTP invocations)
    • Cloud Run - 2 million requests per month, 360,000 GB-seconds memory, 180,000 vCPU-seconds of compute time, 1 GB network egress from North America per month
    • Google Kubernetes Engine - No cluster management fee for one zonal cluster. Each user node is charged at standard Compute Engine pricing
    • BigQuery - 1 TB of querying per month, 10 GB of storage each month
    • Cloud Build - 120 build-minutes per day
    • Cloud Source Repositories - Up to 5 Users, 50 GB Storage, 50 GB Egress
    • Full, detailed list - https://cloud.google.com/free
  • Amazon Web Services

  • Microsoft Azure

  • Oracle Cloud

    • Compute - 2 x64-based with 1 GB RAM each, 4 Arm-based Ampere A1 cores and 24 GB of memory usable as one VM or up to 4 VMs
    • Block Volume - 4 volumes, 200 GB total (used for compute)
    • Object Storage - 10 GB
    • Load balancer - 1 instance with 10 Mbps
    • Databases - 2 DBs, 20 GB each
    • Monitoring - 500 million ingestion datapoints, 1 billion retrieval datapoints
    • Bandwidth - 10 TB egress per month, speed limited to 50 Mbps on x64 based VM, 500 Mbps * core count on ARM based VM
    • Public IP - 2 IPv4 for VMs, 1 IPv4 for load balancer
    • Notifications - 1 million delivery options per month, 1000 emails sent per month
    • Full, detailed list - https://www.oracle.com/cloud/free/
  • IBM Cloud

    • Cloud Functions - 5 million executions per month
    • Object Storage - 25GB per month
    • Cloudant database - 1 GB of data storage
    • Db2 database - 100MB of data storage
    • API Connect - 50,000 API calls per month
    • Availability Monitoring - 3 million data points per month
    • Log Analysis - 500MB of daily log
    • Full, detailed list - https://www.ibm.com/cloud/free/

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Cloud management solutions

  • Brainboard - Collaborative solution to visually build and manage cloud infrastructures from end-to-end.
  • Pulumi — Modern infrastructure as code platform that allows you to use familiar programming languages and tools to build, deploy, and manage cloud infrastructure.
  • terraform.io — Terraform Cloud. Free remote state management and team collaboration for teams up to 5 users.

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Source Code Repos

  • Bitbucket — Unlimited public and private Git repos for up to 5 users with Pipelines for CI/CD
  • chiselapp.com — Unlimited public and private Fossil repositories
  • codebasehq.com — One free project with 100 MB space and 2 users
  • Codeberg.org - Unlimited public and private Git repos for free and open-source projects. Static website hosting with Codeberg Pages.
  • Gitea.com - Unlimited public and private Git repos
  • GitGud — Unlimited private and public repositories. Free forever. Powered by GitLab & Sapphire. CI/CD not provided.
  • GitHub — Unlimited public repositories and unlimited private repositories (with unlimited collaborators). Apart from this some other free services(there are much more but we list the main ones here) provided are :
  • gitlab.com — Unlimited public and private Git repos with up to 5 collaborators. Also offers the following features :
    • CI/CD (Free for Public Repos, 400 mins/month for private repos)
    • Static Sites with GitLab Pages.
    • Container Registry with 10 GB limit per repo.
    • Project Management & Issue Tracking.
  • heptapod.net — Heptapod is a friendly fork of GitLab Community Edition providing support for Mercurial
  • ionicframework.com - Repo and tools to develop applications with Ionic, also you have an ionic repo
  • NotABug — NotABug.org is a free-software code collaboration platform for freely licensed projects, Git-based
  • OSDN - OSDN.net is a free-of-charge service for open source software developers, offering SVN/Git/Mercurial/Bazaar/CVS repositories and more.
  • Pagure.io — Pagure.io is a free and open source software code collaboration platform for FOSS-licensed projects, Git-based
  • perforce.com — Free 1GB Cloud and Git, Mercurial, or SVN repositories.
  • pijul.com - Unlimited free and open source distributed version control system. Its distinctive feature is to be based on a sound theory of patches, which makes it easy to learn and use, and really distributed. Solves many problems of git/hg/svn/darcs.
  • plasticscm.com — Free for individuals, OSS and nonprofit organizations
  • projectlocker.com — One free private project (Git and Subversion) with 50 MB space
  • RocketGit — Repository Hosting based on Git. Unlimited Public & Private repositories.
  • savannah.gnu.org - Serves as a collaborative software development management system for free Software projects (for GNU Projects)
  • savannah.nongnu.org - Serves as a collaborative software development management system for free Software projects (for non-GNU projects)

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APIs, Data and ML

  • IP.City — 100 free IP geolocation requests per day
  • Abstract API — API suite for a variety of use cases including IP geolocation, gender detection or even email validation.
  • algorithmia.com — Host algorithms for free. Includes free monthly allowance for running algorithms. Now with CLI support.
  • Apify — Web scraping and automation platform to create an API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included every month.
  • API Mocha - Completely free online API mocking for testing and prototyping. Make up to 500 requests per day, fully customizable API responses, download mock rules as a Postman collection.
  • APITemplate.io - Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML required. Free plan comes with 50 images/month and 3 templates.
  • Atlas toolkit - Lightweight library to develop single-page web applications that are instantly accessible. Available for Java, Node.js, Perl, Python and Ruby.
  • Beeceptor - Mock a rest API in seconds, fake API response and much more. Free 50 requests per day, public dashboard, open endpoints (anyone having link to the dashboard can view requests and responses).
  • bigml.com — Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16 MB data/task.
  • Bruzu — Automate Image production. Generate tons of Image variants with API, Integrations or nocode sheet. API is FREE with watermark.
  • Calendarific - Enterprise-grade Public holiday API service for over 200 countries. Free plan includes 1000 calls per month.
  • Clarifai — Image API for custom face recognition and detection. Able to train AI models. Free plan has 5000 calls per month.
  • cogram - Cogram uses artificial intelligence to give you code suggestions in Jupyter Notebook. 1,000 code generations/month for free.
  • Cloudmersive — Utility API platform with full access to expansive API Library including Document Conversion, Virus Scanning, and more with 800 calls/month.
  • Colaboratory — Free web-based Python notebook environment with Nvidia Tesla K80 GPU.
  • Collect2 — Create an API endpoint to test, automate, and connect webhooks. Free plan allows for two datasets, 2000 records, 1 forwarder, and 1 alert.
  • Conversion Tools - Online File Converter for documents, images, video, audio, eBooks. REST API is available. Libraries for Node.js, PHP, Python. Support files up to 50 GB (for paid plans). Free tier is limited by file size and number of conversions per day.
  • Coupler - Data integration tool that syncs between apps. It can create live dashboards and reports, transform and manipulate values, collect and back up insights. The free plan has unlimited users, 100 runs with 1000 rows a month and unlimited integrations.
  • CraftMyPDF - Auto-Generate PDF documents from reusable templates with a drop-and-drop editor and a simple API. Free plan comes with 100 PDFs/month and 3 templates.
  • CurlHub — Proxy service for inspecting and debugging API calls. Free plan includes 10,000 requests per month.
  • CurrencyScoop - Realtime currency data API for fintech apps. Free plan includes 5000 calls per month.
  • Dataimporter.io - Tool for connecting, cleaning, and importing data into Salesforce. Free Plan includes up to 20,000 records per month.
  • Data Miner - A browser extension (Google Chrome, MS Edge) for data extraction from web pages CSV or Excel. The free plan gives you 500 pages/month.
  • Datapane - API for building interactive reports in Python and deploying Python scripts and Jupyter Notebooks as self-service tools.
  • DB Designer — Cloud based Database schema design and modeling tool with a free starter plan of 2 Database models and 10 tables per model.
  • DeepAR — Augmented reality face filters for any platform with one SDK. Free plan provides up to 10 monthly active users (MAU) and tracking up to 4 faces
  • Deepnote - A new kind of data science notebook. Jupyter-compatible with real-time collaboration and running in the cloud. Free tier includes unlimited personal projects, up to 750 hours of standard hardware and teams with up to 3 editors.
  • Diggernaut — Cloud based web scraping and data extraction platform for turning any website to the dataset or to work with it as with an API. Free plan includes 5K page requests monthly.
  • Disease.sh — A free API providing accurate data for building the Covid-19 related useful Apps.
  • dominodatalab.com — Data science with support for Python, R, Spark, Hadoop, MATLAB and others.
  • dreamfactory.com — Open source REST API backend for mobile, web, and IoT applications. Hook up any SQL/NoSQL database, file storage system, or external service and it instantly creates a comprehensive REST API platform with live documentation, user management,...
  • DynaPictures - Design automation tool which lets you dynamically generate images over REST API. Change colors, texts, logos and images on the fly. Free plan includes 30 generated images per month and 3 image templates.
  • Efemarai - Testing and debugging platform for ML models and data. Visualize any computational graph. Free 30 debugging sessions per month for developers.
  • ExtendsClass - Free web-based HTTP client to send HTTP requests.
  • Export SDK - PDF generator API with drag and drop template editor that also provides an SDK and no-code integrations. Free plan comes with 250 pages per month, unlimited users and three templates.
  • file.coffee - A platform where you can store up to 15MB/file (30/MB file with an account).
  • Flatirons Fuse - An embeddable CSV and spreadsheet import tool that makes importing data to your website fast, easy, and painless.
  • FraudLabs Pro — Screen an order transaction for credit card payment fraud. This REST API will detect all possible fraud traits based on the input parameters of an order. Free Micro plan has 500 transactions per month.
  • FreeGeoIP.app - Completely free Geo IP information (JSON, CSV, XML). No registration required, 15000 queries per hour rate limit.
  • Geekflare API - Geekflare API let you take screenshots, audit websites, TLS scan, DNS lookup, test TTFB, and a lot more. The free plan offers 3000 API requests.
  • GeoDataSource — Location search service lookup for city name by using latitude and longitude coordinate. Free API queries up to 500 times per month.
  • Glitterly - Programatically generate dynamic images from base templates. Restful API and nocode integrations. Free tier comes with 50 images/month and 5 templates.
  • GoodData - Data as a Service - Create interactive and insightful dashboards. Free tier comes with 5 workspaces and 100 MB/workspace.
  • Hex - a collaborative data platform for notebooks, data apps and knowledge libraries. Free community version with up to 3 authors and 5 projects. One compute profile per author with 4GB RAM.
  • Hookbin - Create unique (public or private) endpoints to collect, parse, and inspect HTTP requests. Inspect headers, body, query strings, cookies, uploaded files, etc. Useful for testing/inspecting webhook. Similar to RequestBin, and Webhook.site.
  • Hoppscotch - A free, fast, and beautiful API request builder.
  • Hybiscus - Build pdf reports using a simple declarative API. Free tier includes upto 100 single page reports per month with the ability to customise color pallet and fonts.
  • Invantive Cloud — Access over 70 (cloud)platforms such as Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). Includes data replication and exchange. Free plan for developers and implementation consultants. Free for specific platforms with limitations in data volumes.
  • ipaddress.sh — Simple service to get public IP address in different formats.
  • Iploka — IP to Geolocation API - Forever free plan for developers with 10k requests per month limit.
  • IP Geolocation — IP Geolocation API - Forever free plan for developers with 30k requests per month (1k/day) limit.
  • IP Geolocation API — IP Geolocation API from Abstract - Extensive free plan allowing 20,000 requests per month.
  • IP2Location — Freemium IP geolocation service. LITE database is available for free download. Import the database in server and perform local query to determine city, coordinates and ISP information.
  • IP2Location.io — Freemium, fast and reliable IP geolocation API to determine geolocation data like city, coordinates, ISP and so on. Free plan is available with 30k credits per month. Subscribe paid plans for more advanced features or contact us for a personalized plan.
  • ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API, built on AWS, trusted by Fortune 500. Free tier offers 30k lookups/month (1k/day) without signup. Contact us for a higher limit trial plan.
  • IPinfo — Fast, accurate, and free (up to 50k/month) IP address data API. Offers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All paid APIs can be trialed for free.
  • IPFast — Find out your IP Address and related detailed information using the free, fastest and simple lookup tool.
  • IPList — Lookup details about any IP address, such as Geo IP information, tor addresses, hostnames and ASN details. Free for personal and business users.
  • BigDataCloud - Provides fast, accurate and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.
  • IPTrace — An embarrassingly simple API that provides reliable and useful IP geolocation data for your business.
  • JSON IP — Returns the Public IP address of the client it is requested from. No registration required for free tier. Using CORS data can be requested using client side JS directly from browser. Useful for services monitoring change in client and server IPs. Unlimited Requests.
  • konghq.com/ — API Marketplace and powerful tools for private and public APIs. With the free tier, some features are limited such as monitoring, alerting and support.
  • Kreya — Free gRPC GUI client to call and test gRPC APIs. Can import gRPC APIs via server reflection.
  • KSoft.Si — Free lyrics api chiefly aimed for discord bots.Also provides an extensive library of images and user data
  • Lightly — Improve your machine learning models by using the right data. Use datasets of up to 1'000 samples for free.
  • MailboxValidator — Email verification service using real mail server connection to confirm valid email. Free API plan has 300 verifications per month.
  • microlink.io – It turns any website into data such as metatags normalization, beauty link previews, scraping capabilities or screenshots as a service. 100 reqs/day every day free.
  • monkeylearn.com — Text analysis with machine learning, free 300 queries/month.
  • MockAPI — MockAPI is a simple tool that lets you easily mock up APIs, generate custom data, and preform operations on it using RESTful interface. MockAPI is meant to be used as a prototyping/testing/learning tool. 1 project/50 resources per project for free.
  • Mocki - A tool that lets you create mock GraphQL and REST APIs synced to a GitHub repository. Simple REST APIs are free to create and use without signup.
  • Mocko.dev — Proxy your API, choose which endpoints to mock in the cloud and inspect traffic, for free. Speed up your development and integrations tests.
  • Mocky - A simple web app to generate custom HTTP responses for mocking HTTP request. Also available as open source.
  • reqres.in - A Free hosted REST-API ready to respond to your AJAX requests.
  • microenv.com — Create fake REST API for developers with possibility to generate code and app in docker container.
  • neptune.ai - Log, store, display, organize, compare and query all your MLOps metadata. Free for individuals: 1 member, 100 GB of metadata storage, 200h of monitoring/month
  • News API — Search news on the web with code, get JSON results. Developers get 3,000 queries free each month.
  • Observable — a place to create, collaborate, and learn with data. Free: Unlimited notebooks, Unlimited publishing, Five editors per notebook.
  • OCR.Space — An OCR API which parses image and pdf files returning the text results in JSON format. 25,000 requests per month free.
  • Duply.co — Create dynamic images from API & URL, design template once and reuse it. Free tier offers 70 images/month creation from API & URL and Up to 100 through Form.
  • Frontend Zero to One — Launch an app immediately from your OpenAPI or Swagger spec, see how partners experience your API. Free. Paid tier for customizations and code.
  • OpenAPI3 Designer — Visually create Open API 3 definitions for free.
  • Orchest — Visual pipeline editor and workflow orchestrator for data science, 1 instance for free, open source version available.
  • parsehub.com — Extract data from dynamic sites, turn dynamic websites into APIs, 5 projects free.
  • Pixela - Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible.
  • Postbacks - Request HTTP callbacks for a later time. 8,000 free requests on signup.
  • Postman — Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.
  • PrefectCloud — A complete platform for dataflow automation. All plans include 20,000 free runs every month. That's enough to power ETL for most small businesses.
  • Preset Cloud - A hosted Apache Superset service. Forever free for teams up to 5 users, featuring unlimited dashboards and charts, no-code chart builder and a collaborative SQL editor.
  • ProxyCrawl — Crawl and scrape websites without the need of proxies, infrastructure or browsers. We solve captchas for you and prevent you being blocked. The first 1000 calls are free of charge.
  • Public-Apis Github Repo — A list of free public APIs.
  • Supportivekoala — Allows you to autogenerate images by your input via templates. Free plan allows you to create up to 100 images per week.
  • QuickMocker — Manage online fake API endpoints under your own subdomain, forward requests to localhost URL for webhooks development and testing, use RegExp and multiple HTTP methods for URL path, prioritize endpoints, more than 100 shortcodes (dynamic or fake response values) for response templating, import from OpenAPI (Swagger) Specifications in JSON format, proxy requests, restrict endpoint by IP address and authorization header. Free account provides 1 random subdomain, 10 endpoints, 5 RegExp URL paths, 50 shortcodes per endpoint, 100 requests per day, 50 history records in requests log.
  • Rapidapi - World’s Largest API Hub Millions of developers find and connect to thousands of APIs, API Development using fun challenges (with solutions!) and interactive examples.
  • RequestBin.com — Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe requests from webhooks and other services.
  • restlet.com — APISpark enables any API, application or data owner to become an API provider in minutes via an intuitive browser interface.
  • Roboflow - create and deploy a custom computer vision model with no prior machine learning experience required. Free tier includes up to 1,000 free source images.
  • ROBOHASH - Web service to generate unique (cool :) images from any text.
  • SaturnCloud - Data science cloud environment, that allows to run Jupyter notebooks and Dask clusters. 30 hours free computation and 3 hours of Dask per month.
  • Scraper.AI - SaaS that turns any website into a consumable API for you to build on. Free 50 extractions and 10000 API calls / month.
  • Scraper's Proxy — Simple HTTP proxy API made for scraping. Scrape anonymously without having to worry about restrictions, blocks or captchas. First 100 successfully scrape's per month free including javascript rendering (more available if you contact support).
  • ScrapingAnt — Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoiding. Free plans available.
  • ScraperBox — Undetectable web scraping API using real Chrome browsers and proxy rotation. Use a simple API call to scrape any web page. Free plan has 1000 requests per month.
  • ScrapingDog — Scrapingdog handles millions of proxies, browsers and CAPTCHAs to provide you with HTML of any web page in a single API call. It also provides Web Scraper for Chrome & Firefox and a software for instant scraping demand. Free plans available.
  • scrapinghub.com — Data scraping with visual interface and plugins. Free plan includes unlimited scraping on a shared server.
  • ScrapingNinja — Handle JS rendering, Chrome Headless, Proxy rotation and CAPTCHAs solving all in one place. The first 1000 are free of charge, no credit card required.
  • Select Star - is an intelligent data discovery platform that automatically analyzes and documents your data. Free light tier with 1 Data Source, up to 100 Tables and up to 10 Users.
  • Sheetson - Instantly turn any Google Sheets into RESTful API. Free plan available.
  • shrtcode API - Free URL Shortening API without authorization and no request limits.
  • SerpApi - Real-time search engine scraping API. Returns structured JSON results for Google, Youtube, Bing, Baidu, Walmart and many other engines. Free plan includes 100 successful API calls per month.
  • Similar Words API — An API to find similar words, has vocabulary of about 4Million words.
  • Sofodata - Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. Free plan includes 2 APIs and 2,500 API calls per month. No credit card required.
  • Stoplight - Saas for collaborativly designing and documenting for APIs. The free plan offers free design, mocking and documentation tools to get started.
  • tamber — Put deep-learning powered recommendations in your app. Free 5k monthly active users.
  • Time Door - A time series analysis API.
  • TinyMCE - rich text editing API. Core features free for unlimited usage.
  • Unixtime - Free API to convert Unixtime to DateTime and vice versa.
  • unscan - Free API to scan images for NSFW and files for malware. 100 requests per second.
  • Webhook.site - Easily test HTTP webhooks with this handy tool that displays requests instantly.
  • wit.ai — NLP for developers.
  • wolfram.com — Built-in knowledge-based algorithms in the cloud.
  • wrapapi.com — Turn any website into a parameterized API. 30k API calls per month.
  • ZenRows — Web Scraping API & proxy server that bypasses any anti-bot solution while offering javascript rendering, rotating proxies, and geotargeting. Free tier of 1000 API calls.
  • Zenscrape — Web scraping API with headless browsers, residentials IPs and simple pricing. 1000 free API calls/month, extra free credits for students and non-profits.
  • ip-api — IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from the same IP address for the free plan.
  • WebScraping.AI - Simple Web Scraping API with built-in parsing, Chrome rendering and proxies. 2000 free API calls per month.
  • Zipcodebase - Free Zip Code API, access to Worldwide Postal Code Data. 10000 free requests/month.
  • EVA - Free email validator API, which helps to identify whether an email is disposable and having valid MX records.
  • happi.dev - Freemium api services collection (Music, Exchange Rate, Key value store, Language Detection, Password Generator, QRCode Generator, Lyrics). 8000 free API calls per month.
  • huggingface.co - Build, train and deploy NLP models for Pytorch, TensorFlow, and JAX. Free up to 30k input characters/mo.
  • vatcheckapi.com - Simple and free VAT number validation API. 500 free requests per month.
  • numlookupapi.com - Free phone number validation API - 100k free requests / month.

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Artifact Repos

  • Artifactory - An artifact repository that supports numerous package formats like Maven, Docker, Cargo, Helm, PyPI, CocoaPods, and GitLFS. Incudes package scanning tool XRay and CI/CD tool Pipelines (formerly Shippable) with a free tier of 2,000 CI/CD minutes per month.
  • central.sonatype.org — The default artifact repository for Apache Maven, SBT and other build systems.
  • cloudrepo.io - Cloud based, private and public, Maven and PyPi repositories. Free for open source projects.
  • cloudsmith.io — Simple, secure and centralised repository service for Java/Maven, RedHat, Debian, Python, Ruby, Vagrant +more. Free tier + free for open source.
  • jitpack.io — Maven repository for JVM and Android projects on GitHub, free for public projects.
  • packagecloud.io — Easy to use repository hosting for: Maven, RPM, DEB, PyPi, NPM, and RubyGem packages (has free tier).
  • repsy.io — 1 GB Free private/public Maven Repository.

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Tools for Teams and Collaboration

  • 3Cols - A free cloud based code snippet manager for personal and collaborative code.
  • Bitwarden — The easiest and safest way for individuals, teams, and business organizations to store, share, and sync sensitive data.
  • Braid — Chat app designed for teams. Free for public access group, unlimited users, history, and integrations. also it provide self-hostable open-source version.
  • cally.com — Find the perfect time and date for a meeting. Simple to use, works great for small and large groups.
  • Calendly — Calendly is the tool for connecting and scheduling meetings. Free plan provides 1 Calendar connection per user and Unlimited meetings. Desktop and Mobile apps also provided.
  • Discord — Chat with public/private rooms. Markdown text, voice, video, and screen sharing capabilities. Free for unlimited users.
  • Telegram — Telegram is for everyone who wants fast and reliable messaging and calls. Business users and small teams may like the large groups, usernames, desktop apps and powerful file sharing options.
  • Duckly — Talk and collaborate in real-time with your team. Pair programming with any IDE, terminal sharing, voice, video and screen sharing. Free for small teams.
  • Dyte - The most developer-friendly live video & audio SDK, featuring collaborative plugins to enhance productivity and engagement. The free tier includes 10,000 minutes of live video/audio usage every month.
  • evernote.com — Tool for organizing information. Share your notes and work together with others
  • Fibery — Connected workspace platform. Free for single user, up to 2 GB disk space.
  • Filestash — A Dropbox-like file manager that connects to a range of protocols and platforms: S3, FTP, SFTP, Minio, Git, WebDAV, Backblaze, LDAP and more.
  • flock.com — A faster way for your team to communicate. Free Unlimited Messages, Channels, Users, Apps & Integrations
  • Flowdash — Automate business workflows. Free tier for up to 3 users, 1000 tasks, and 3 workflows.
  • flowdock.com — Chat and inbox, free for teams up to 5
  • Gather - A better way to meet online. Centered around fully customizable spaces, Gather makes spending time with your communities just as easy as real life. Free for up to 25 concurrent users.
  • GitDailies - Daily reports of your team's Commit and Pull Request activity on GitHub. Includes Push visualizer, peer recognition system, custom alert builder. Free tier has unlimited users, 3 repos, 3 alert configs.
  • gitter.im — Chat, for GitHub. Unlimited public and private rooms, free for teams up to 25
  • hangouts.google.com — One place for all your conversations, for free, need a Google account
  • HeySpace - Task management tool with chat, calendar, timeline and video calls. Free for up to 5 users.
  • helplightning.com — Help over video with augmented reality. Free without analytics, encryption, support
  • ideascale.com — Allow clients to submit ideas and vote, free for 25 members in 1 community
  • Igloo — Internal portal for sharing documents, blogs and calendars etc. Free for up to 10 users.
  • Keybase — Keybase is a cool FOSS alternative to Slack, it keeps everyone's chats and files safe, from families to communities to companies.
  • Google Meet — Use Google Meet for your business's online video meeting needs. Meet provides secure, easy-to-join online meetings.
  • /meet for Slack - Start Google Meetings directly from Slack by using /meet in any channel, group or DM. Free without any limitations.
  • Livecycle — Livecycle is an inclusive collaboration platform that makes workflows frictionless for cross-functional product teams and open source projects.
  • MarkUp — MarkUp lets you collect feedback directly on top of your websites, PDFs and images.
  • meet.jit.si — One click video conversations, screen sharing, for free
  • Microsoft Teams — Microsoft Teams is a chat-based digital hub that brings conversations, content, and apps together in one place all from a single experience. Free for up to 500k users.
  • Miro - Scalable, secure, cross-device and enterprise-ready team collaboration whiteboard for distributed teams. With freemium plan.
  • nootiz - The go-to tool for gathering and managing visual feedback on any website
  • Notion - Notion is a note-taking and collaboration application with markdown support that also integrates tasks, wikis, and databases. The company describes the app as an all-in-one workspace for note-taking, project management and task management. In addition to cross-platform apps, it can be accessed via most web browsers.
  • Nuclino - A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Free plan with all essential features, up to 50 items, 5GB total storage.
  • PageShare.dev - Adds visual reviews capabilities into GitHub Pull Requests with no need to deploy websites. Free for up to 10 pages each month and 100MB of storage in total.
  • Pendulums - Pendulums is a free time tracking tool which helps you to manage your time in a better manner with an easy to use interface and useful statistics.
  • Raindrop.io - Private and secure bookmarking app for macOS, Windows, Android, iOS and Web. Free Unlimited Bookmarks and Collaboration.
  • element.io — A decentralized and open source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.
  • Rocket.Chat - Shared inbox for teams, secure, unlimited and open source.
  • seafile.com — Private or cloud storage, file sharing, sync, discussions. Private version is full. Cloud version has just 1 GB
  • Slab — A modern knowledge management service for teams. Free for up to 10 users.
  • slack.com — Free for unlimited users with some feature limitations
  • Spectrum - Create public or private communities for free.
  • StatusPile - A status page of status pages. Track the status pages of your upstream providers.
  • Stickies - Visual collaboration app used for brainstorming, content curation, and notes. Free for up to 3 Walls, unlimited users, 1 GB storage.
  • talky.io — Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required
  • Teamhood - Free Project, Task and Issue tracking software. Supports Kanban with Swimlanes and full Scrum implementation. Has integrated time tracking. Free for 5 users and 3 project portfolios.
  • Tefter - Bookmarking app with a powerful Slack integration. Free for open-source teams.
  • TeleType — share terminals, voice, code, whiteboard and more. no sign-in required, end-to-end encrypted collaboration for developers.
  • TimeCamp - Free time tracking software for unlimited users. Easily integrates with PM tools like Jira, Trello, Asana, etc.
  • Tree Schema — Data catalog and metadata management with APIs to manage data lineage as code. Free for teams of up to 5 users.
  • twist.com — An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans available. Discounts provided for eligible teams.
  • BookmarkOS.com - Free all-on-one bookmark manager, tab manager, and task manager in a customizable online desktop with folder collaboration.
  • typetalk.com — Share and discuss ideas with your team through instant messaging on the web or on your mobile
  • Tugboat - Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.
  • whereby.com — One click video conversations, for free (formerly known as appear.in)
  • vadoo.tv — Video hosting and marketing made simple. Upload videos with a single click. Record, manage, share & more. Free tier provides upto 10 videos, 1 GB storage, 10 GB bandwidth/month
  • vspace — Free links manager with private/public spaces, includes slack and google docs integration and chrome plugin.
  • userforge.com - Interconnected online personas, user stories and context mapping. Helps keep design and dev in sync, free for up to 3 personas and 2 collaborators.
  • wistia.com — Video hosting with viewer analytics, HD video delivery and marketing tools to help understand your visitors, 25 videos and Wistia branded player
  • wormhol.org — Straightforward file sharing service. Share unlimited files up to 5GB to as many peers as you want.
  • zoom.us — Secure Video and Web conferencing, add-ons available. Free limited to 40 minutes
  • shtab.app - Project management service that makes collaboration in the office and remotely transparent with tracker based on AI.
  • zdoo.co — With CRM, OA, and Project management suites, zdoo is so powerful for team collaboration. Free cloud version with limited users and space offered, one-month free trial for premium versions.
  • Zulip — Real-time chat with unique email-like threading model. Free plan includes 10,000 messages of search history and File storage up to 5 GB. also it provides self-hostable open-source version.
  • Automate.io - Simple and complex automation workflow tool with over 200+ app integrations. 300 monthly actions and 5 bots are free
  • robocorp.com - Open-source stack for powering Automation Ops. Try out Cloud features and implement simple automations for free. Robot work 240 min/month, 10 Assistant runs, Storage of 100 MB.
  • Fleep.io — Fleep an alternative to Slack. It has a free plan for small teams with full message history, unlimited 1:1 conversations, 1 group conversation and 1 GB file storage.
  • Chanty.com — Chanty is another alternative to Slack. It has a free forever plan for small teams (up to 10) with unlimited public and private conversations, searchable history, unlimited 1:1 audio calls, unlimited voice messages, 10 integrations and 20 GB storage per team.
  • ruttl.com — The best all-in-one feedback tool to collect digital feedback and review websites, PDF's and images.

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CMS

  • acquia.com — Hosting for Drupal sites. Free tier for developers. Free development tools (such as Acquia Dev Desktop) also available
  • Contentful — Headless CMS. Content management and delivery APIs in the cloud. Comes with one free Community space that includes 5 users, 25K records, 48 Content Types, 2 locales.
  • Cosmic — Headless CMS and API toolkit. Free personal plans for developers.
  • Crystallize — Headless PIM with ecommerce support. Built-in GraphQL API. Free version includes unlimited users, 1000 catalogue items, 5 GB/month bandwidth and 25k/month API calls.
  • DatoCMS - Offers free tier for small projects. DatoCMS is a GraphQL based CMS. On the lower tier you have 100k/month calls.
  • Directus — Headless CMS. A completely free and open-source platform for managing assets and database content on-prem or in the Cloud. No limitations or paywalls.
  • Forestry.io/ — Headless CMS. Give your editors the power of Git. Create and edit Markdown-based content with ease. Comes with three free sites that includes 3 editors, Instant Previews. Integrates with blogs hosted on Netlify/GitHubpages/ elsewhere
  • FrontAid — Headless CMS that stores JSON content directly in your own Git repository. No restrictions.
  • kontent.ai - A Content-as-a-Service platform that gives you all the headless CMS benefits while empowering marketers at the same time. Developer plan provides 2 users with unlimited projects with 2 environments for each, 500 content items, 2 languages with Delivery and Management API, and Custom elements support. Larger plans available to meet your needs.
  • Prismic — Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides 1 user with unlimited API calls, documents, custom types, assets, and locales. Everything that you need for your next project. Bigger free plans available for Open Content/Open Source projects.
  • Sanity.io - Platform for structured content that comes with an open-source editing environment and a real-time hosted data store. Unlimited projects. Unlimited admin users, 3 non-admin users, 2 datasets, 500K API CDN requests, 10GB bandwidth, 5GB assets included for free per project.
  • sensenet - API-first headless CMS providing enterprise-grade solutions for businesses of all size. The Developer plan provides 3 users, 500 content items, 3 built-in roles, 25+5 content types, fully accessible REST API, document preview generation and Office Online editing. *GatsbyjsCMS - Gatsby is the fast and flexible framework that makes building websites with any CMS, API, or database fun again. Build and deploy headless websites that drive more traffic, convert better, and earn more revenue!
  • GraphCMS - Offers free tier for small projects. GraphQL first API. Move away from legacy solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first.
  • Squidex - Offers free tier for small projects. API / GraphQL first. Open source, and based on event sourcing (versing every changes automatically).

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Code Quality

  • SoftaCheck — An online tool that performs static analysis for C/C++ code using open source tools such as cppcheck and clang-tidy and automatically generates code documentation for users using doxygen. This tool is free for use.
  • beanstalkapp.com — A complete workflow to write, review and deploy code), free account for 1 user and 1 repository with 100 MB of storage
  • browserling.com — Live interactive cross-browser testing, free only 3 minutes sessions with MS IE 9 under Vista at 1024 x 768 resolution
  • codacy.com — Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS and CoffeeScript, free for unlimited public and private repositories
  • Codeac.io - Automated Infrastructure as Code review tool for DevOps integrates with GitHub, Bitbucket and GitLab (even self-hosted). In addition to standard languages, it analyzes also Ansible, Terraform, CloudFormation, Kubernetes, and more. (open-source free)
  • CodeBeat — Automated Code Review Platform available for many languages. Free forever for public repositories with Slack & E-mail integration.
  • codeclimate.com — Automated code review, free for Open Source and unlimited organisation-owned private repos (up to 4 collaborators). Also free for students and institutions.
  • codecov.io — Code coverage tool (SaaS), free for Open Source and 1 free private repo
  • CodeFactor — Automated Code Review for Git. Free version includes unlimited users, unlimited public repositories and 1 private repo.
  • codescene.io - CodeScene prioritizes technical debt based on how the developers work with the code and visualizes organizational factors like team coupling and system mastery. Free for Open Source.
  • coveralls.io — Display test coverage reports, free for Open Source
  • dareboost - 5 free analysis report for web performance, accessibility, security each month
  • deepcode.ai — DeepCode finds bugs, security vulnerabilities, performance and API issues based on AI. DeepCode's speed of analysis allow us to analyse your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, C/C++, JavaScript, Python, and TypeScript. Integrations with GitHub, BitBucket and GitLab. Free for open source and private repos, free up to 30 developers.
  • deepscan.io — Advanced static analysis for automatically finding runtime errors in JavaScript code, free for Open Source
  • DeepSource - DeepSource continuously analyzes source code changes, finds and fixes issues categorized under security, performance, anti-patterns, bug-risks, documentation and style. Native integration with GitHub, GitLab and Bitbucket.
  • eversql.com — EverSQL - The #1 platform for database optimization. Gain critical insights into your database and SQL queries, auto-magically.
  • gerrithub.io — Gerrit code review for GitHub repositories for free
  • gocover.io — Code coverage for any Go package
  • goreportcard.com — Code Quality for Go projects, free for Open Source
  • gtmetrix.com — Reports and thorough recommendations to optimize websites
  • holistic.dev - The #1 static code analyzer for Postgresql optimization. Performance, security, and architect database issues automatic detection service
  • houndci.com — Comments on GitHub commits about code quality, free for Open Source
  • Imgbot — Imgbot is a friendly robot that optimizes your images and saves you time. Optimized images mean smaller file sizes without sacrificing quality. It's free for open source.
  • Kritika — Static Code Analysis for Perl with integration for GitHub. Free for unlimited public repositories.
  • resmush.it — reSmush.it is a FREE API that provides image optimization. reSmush.it has been implemented on the most common CMS such as Wordpress, Drupal or Magento. reSmush.it is the most used image optimization API with more than 7 billions images already treated, and is still Free of charge.
  • insight.sensiolabs.com — Code Quality for PHP/Symfony projects, free for Open Source
  • lgtm.com — Continuous security analysis for Java, Python, JavaScript, TypeScript, C#, C and C++, free for Open Source
  • Moderne.io — Automatic source code refactoring. Moderne offers framework migrations, code analysis with remediation, and unrivaled code transformation at scale, so developers can spend their time building new things instead of maintaining the old. Free for Open Source.
  • reviewable.io — Code review for GitHub repositories, free for public or personal repos
  • parsers.dev - Abstract syntax tree parsers and intermediate representation compilers as a service
  • scan.coverity.com — Static code analysis for Java, C/C++, C# and JavaScript, free for Open Source
  • scrutinizer-ci.com — Continuous inspection platform, free for Open Source
  • shields.io — Quality metadata badges for open source projects
  • Sider — Code review platform for many languages. Supports integration with GitHub. Free for public repositories with unlimited users.
  • sonarcloud.io — Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Objective-C, Swift, Python, Groovy and even more languages, free for Open Source
  • SourceLevel — Automated Code Review and Team Analytics. Free for Open Source and organizations up to 5 collaborators.
  • Typo CI — Typo CI reviews your Pull Requests and commits for spelling mistakes, free for Open Source.
  • Viezly - Enhanced code review tool for easier code reading and navigation. Free for Open Source and free for personal usage.
  • webceo.com — SEO tools but with also code verifications and different type of advices
  • zoompf.com — Fix the performance of your web sites, detailed analysis

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Code Search and Browsing

  • tabnine.com — Tabnine helps developers create better software, faster by providing insights learned from all the code in the world. Plugin available.
  • libraries.io — Search and dependency update notifications for 32 different package managers, free for open source
  • Namae - Search across various websites like github,gitlab,heroku,netlify and many more for availabilty of your project name.
  • searchcode.com — Comprehensive text-based code search, free for Open Source
  • sourcegraph.com — Java, Go, Python, Node.js, etc., code search/cross-references, free for Open Source
  • tickgit.com — Surfaces TODO comments (and other markers) to identify areas of code worth returning to for improvement.
  • CodeKeep - Google Keep for Code Snippets. Organize,Discover and share code snippets, featuring a powerful code screenshot tool with preset templates and linking feature.

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CI and CD

  • AccessLint — AccessLint brings automated web accessibility testing into your development workflow. It's free for open source and education purposes.
  • appcircle.io — Automated mobile CI/CD/CT for iOS and Android with online device emulators. 20 minutes build timeout (60 mins for Open Source) with single concurrency for free.
  • appveyor.com — CD service for Windows, free for Open Source
  • Argonaut - Deploy apps and infrastructure on your cloud in minutes. Support for custom and third-party app deployments on Kubernetes and Lambda environments. Free tier allows unlimited apps and deployments for 5 environments and 2 users.
  • bitrise.io — A CI/CD for mobile apps, native or hybrid. With 200 free builds/month 10 min build time and two team members. OSS projects get 45 min build time, +1 concurrency and unlimited team size.
  • buddy.works — A CI/CD with 5 free projects and 1 concurrent runs (120 executions/month)
  • buddybuild.com — Build, deploy and gather feedback for your iOS and Android apps in one seamless, iterative system
  • circleci.com — Free for one concurrent build
  • cirrus-ci.org - Free for public GitHub repositories
  • codefresh.io — Free-for-Life plan: 1 build, 1 environment, shared servers, unlimited public repos
  • codemagic.io - Free 500 build minutes/month
  • codeship.com — 100 private builds/month, 5 private projects, unlimited for Open Source
  • deployhq.com — 1 project with 10 daily deployments (30 build minutes/month)
  • drone - Drone Cloud enables developers to run Continuous Delivery pipelines across multiple architectures - including x86 and Arm (both 32 bit and 64 bit) - all in one place
  • LayerCI — CI for full stack projects. 1 full stack preview environment with 5GB memory & 3 CPUs .
  • ligurio/awesome-ci — Comparison of Continuous Integration services
  • Octopus Deploy - Automated deployment and release-management. Free for <----> http://localhost:8080`).
  • Hookdeck — Develop, test and monitor your webhooks from a single place. 100K requests and 100K attempts per month with 3 days retention.
  • Xirsys — Global network of STUN / TURN servers with a generous free tier.
  • ZeroTier — FOSS managed virtual Ethernet as a service. Unlimited end-to-end encrypted networks of 100 clients on free plan. Clients for desktop/mobile/NA; web interface for configuration of custom routing rules and approval of new client nodes on private networks.

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Issue Tracking and Project Management

  • acunote.com — Free project management and SCRUM software for up to 5 team members
  • asana.com — Free for private project with collaborators
  • Backlog — Everything your team needs to release great projects in one platform. Free plan offers 1 Project with 10 users & 100MB storage.
  • Basecamp - To-do lists, milestone management, forum-like messaging, file sharing, and time tracking. Up to 3 projects, 20 users, and 1GB of storage space.
  • bitrix24.com — Free intranet and project management tool
  • cacoo.com — Online diagrams in real-time: flowchart, UML, network. Free max. 15 users/diagram, 25 sheets
  • Chpokify — Teams based Planning Poker that saves time of sprint estimation. Free up to 5 users, free Jira integrations, unlimited video calls, unlimited teams, unlimited sessions.
  • clickup.com — Project management. Free, premium version with cloud storage. Mobile applications and Git integrations available
  • Cloudcraft — Design a professional architecture diagram in minutes with the Cloudcraft visual designer, optimized for AWS with smart components that show live data too.
  • Codegiant — Project Management with Repository hosting & CI/CD. Free Plan Offers Unlimited Repositories,Projects & Documents with 5 Team Members. 500 CI/CD minutes per month. 30000 Serverless Code Run minutes per month.1GB repository storage.
  • Confluence - Atlassian's content collaboration tool used to help teams collaborate and share knowledge efficiently. Free plan up to 10 users.
  • contriber.com — Customizable project management platform, free starter plan, 5 workspaces
  • diagrams.net/ — Online diagrams stored locally, in Google Drive, OneDrive or Dropbox. Free for all features and storage levels
  • freedcamp.com - tasks, discussions, milestones, time tracking, calendar, files and password manager. Free plan with unlimited projects, users and files storage.
  • easyretro.io — Free simple and intuitive sprint retrospective tool
  • GForge — Project Management & Issue Tracking toolset for complex projects with self-premises and SaaS options. SaaS free plan offers first 5 users free & free for Open Source Projects.
  • gleek.io — Free description-to-diagrams tool for developers. Create informal, UML class, object, or entity-relationship diagrams using your keyword.
  • GraphQL Inspector - GraphQL Inspector ouputs a list of changes between two GraphQL schemas. Every change is precisely explained and marked as breaking, non-breaking or dangerous.
  • huboard.com — Instant project management for your GitHub issues, free for Open Source
  • Hygger — Project management platform. Free plan offers unlimited users,projects & boards with 100 MB Storage.
  • Instabug — A comprehensive bug reporting and in-app feedback SDK for mobile apps. Free plan up to 1 app and 1 member.
  • Ilograph — interactive diagrams that allow users to see their infrastructure from multiple perspectives and levels of detail. Diagrams can be expressed in code. Free tier has unlimited private diagrams with up to 3 viewers.
  • Issue Embed - A bug reporting tool for websites to go directly into your Github Issues. Free plan for personal repositories with up to 500 issues/month and 10,000 page views/month.
  • Jira — Advanced software development project management tool used in many corporate environments. Free plan up to 10 users.
  • kanbanflow.com — Board-based project management. Free, premium version with more options
  • kanbantool.com — Kanban board-based project management. Free, paid plans with more options
  • Kitemaker.co - Collaborate through all phases of the product development process and keep track of work across Slack, Discord, Figma, and Github. Unlimited users, unlimited spaces. Free plan up to 250 work items.
  • Kumu.io — Relationship maps with animation, decorations, filters, clustering, spreadsheet imports and more. Free tier allows unlimited public projects. Graph size unlimited. Free private projects for students. Sandbox mode is available if you prefer to not leave your file publicly online (upload, edit, download, discard).
  • LeanBoard — Collaborative whiteboard with sticky notes for your GitHub issues (Useful for Example Mapping and other techniques)
  • Linear — Issue tracker with streamlined interface. Free for unlimited members, up to 10MB file upload size, 250 issues (excluding Archive)
  • Lucidchart - A online diagram tools with collaboration features. Free plan with 3 editable documents, 100 professional templates and basic collaboration features.
  • MeisterTask — Online task management for teams. Free up to 3 projects, unlimited project members.
  • MeuScrum - Free online scrum tool with kanban board
  • nTask — Project management software that enables your teams tn collaborate, plan, analyze and manage everyday tasks. Basic Plan free forever with 100 MB storage, 5 users/team. Unlimited workspaces, meetings,tasks, timesheets and issue tracking.
  • Ora - Agile task management & team collaboration. Free for up to 3 users and files are limited to 10 MB.
  • pivotaltracker.com — Free for unlimited public projects and two private projects with 3 total active users (read-write) and unlimited passive users (read-only).
  • plan.io — Project Management with Repository Hosting and more options. Free for 2 users with 10 customers and 500MB Storage
  • planitpoker.com — Free online planning poker (estimation tool)
  • saas.zentao.pm - An Application Lifecycle Management solution for Issue Tracking and Project Management, on-premise and open source version are available as well.
  • ScrumFast - Scrum board with a very intuitive interface, free up to 5 users.
  • Shake - In-app bug reporting and feedback tool for mobile apps. Free plan, 10 bug reports per app/per month.
  • Shortcut - Project management platform. Free for up to 10 users forever.
  • SpeedBoard - Board for Agile and Scrum retrospectives - Free.
  • SuperPM - Versatile project management platform. Free for up to 3 projects, unlimited users, 1 GB storage.
  • Tadum - Meeting agenda and minutes app designed for recurring meetings, free for teams up to 10
  • taiga.io — Project management platform for startups and agile developers, free for Open Source
  • Tara AI — Simple sprint management service. Free plan has unlimited tasks, sprints and workspaces, with no user limits.
  • targetprocess.com — Visual project management, from Kanban and Scrum to almost any operational process. Free for unlimited users, up to 1,000 data entities {more details}
  • taskade.com — Real-time collaborative task lists and outlines for teams
  • taskulu.com — Role based project management. Free up to 5 users. Integration with GitHub/Trello/Dropbox/Google Drive
  • teamwork.com — Project management & Team Chat. Free for 5 users and 2 projects. Premium plans available.
  • teleretro.com — Simple and fun retrospective tool with icebreakers, gifs and emojis. Free plan includes 3 retros and unlimited members.
  • testlio.com — Issue tracking, test management and beta testing platform. Free for private use
  • terrastruct.com — Online diagram maker specifically for software architecture. Free tier up to 4 layers per diagram.
  • todoist.com — Collaborative and individual task management. Free, Premium and Team plans are available. Discounts provided for eligible users.
  • trello.com — Board-based project management. Unlimited Personal Boards, 10 Team Boards.
  • Tweek — Simple Weekly To-Do Calendar & Task Management.
  • ubertesters.com — Test platform, integration and crowdtesters, 2 projects, 5 members
  • vabotu - A collaborative tool for project management. Free and other plans are available. The Freelance plan is for 10 users, include messaging, task-boards, 5GB online storage, workspaces, export data.
  • vivifyscrum.com — Free tool for Agile project management. Scrum Compatible
  • Wikifactory — Product designing Service with Projects, VCS & Issues. Free plan offers unlimited projects & collaborators and 3GB storage.
  • Yodiz — Agile development and issue tracking. Free up to 3 users, unlimited projects.
  • YouTrack — Free hosted YouTrack (InCloud) for FOSS projects, private projects (free for 3 users). Includes time tracking and agile boards
  • zenhub.com — The only project management solution inside GitHub. Free for public repos, OSS and nonprofit organizations
  • zepel.io - The project management tool that lets you plan features, collaborate across disciplines, and build software together. Free up to 5 members. No feature restrictions.
  • zenkit.com — Project management and collaboration tool. Free for up to 5 members, 5 GB attachments.
  • Zube — Project management with free plan for 4 Projects & 4 users. GitHub integration available.
  • Toggl — Provides 2 free productivity tools. Toggl Track for time management and tracking app with a free plan provides seamless time tracking and reporting designed for freelancers in mind. It has unlimited tracking records, projects, clients, tags, reporting and more. And Toggl Plan for task planning that comes with a free plan for solo developers with unlimited tasks, milestones and timelines.

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Storage and Media Processing

  • borgbase.com — Simple and secure offsite backup hosting for Borg Backup. 10 GB free backup space and 2 repositories.
  • icedrive.net - Simple cloud storage service. 10 GB free storage
  • sync.com - End-to-End cloud storage service. 5 GB free storage
  • pcloud.com - Cloud storage service. Up to 10 GB free storage
  • sirv.com — Smart Image CDN with on-the-fly image optimization and resizing. Free tier includes 500 MB of storage and 2 GB bandwidth.
  • image4.io — Image upload, powerful manipulations, storage and delivery for websites and apps, with SDK's, integrations and migration tools. Free tier includes 25 credits. 1 credit is equal to 1 GB of CDN usage, 1GB of storage or 1000 image transformations.
  • cloudimage.com — Full image optimization and CDN service with 1500+ Points of Presence around the world. A variety of image resizing, compression, watermarking functions. Open source plugins for responsive images, 360 image making and image editing. Free monthly plan with 25GB of CDN traffic and 25GB of cache storage and unlimited transformations.
  • cloudinary.com — Image upload, powerful manipulations, storage and delivery for sites and apps, with libraries for Ruby, Python, Java, PHP, Objective-C and more. Free tier includes 25 monthly credits. 1 credit is equal to 1,000 image transformations, 1 GB of storage, or 1 GB of CDN usage.
  • easyDB.io — one-click, hosted database provider. They provide a database for the programming language of your choice for development purposes. The DB is ephemeral and will be deleted after 24 or 72 hours on the free tier.
  • embed.ly — Provides APIs for embedding media in a webpage, responsive image scaling, extracting elements from a webpage. Free for up to 5,000 URLs/month at 15 requests/second
  • filestack.com — File picker, transform and deliver, free for 250 files, 500 transformations and 3 GB bandwidth
  • file.io - 2 GB storage of files. A file is auto-deleted after 1 download. REST API to interact with the storage. Rate limit 1 request/minute.
  • gumlet.com — Image resize-as-a-service. It also optimizes images and performs delivery via CDN. Free tier includes 1 GB bandwidth and unlimited number of image processing every month for 1 year.
  • image-charts.com — Unlimited image chart generation with a watermark
  • imgen - Free unlimited social cover image generation API, no watermark
  • jsonbin.io — Free JSON data storage service, ideal for small-scale web apps, website, mobile apps.
  • kraken.io — Image optimization for website performance as a service, free plan up to 1 MB file size
  • npoint.io — JSON store with collaborative schema editing
  • otixo.com — Encrypt, share, copy and move all your cloud storage files from one place. Basic plan provides unlimited files transfer with 250 MB max. file size and allows 5 encrypted files
  • packagecloud.io — Hosted Package Repositories for YUM, APT, RubyGem and PyPI. Limited free plans, open source plans available via request
  • getpantry.cloud — A simple JSON data storage API that's perfect for personal projects, hackathons and mobile apps!
  • piio.co — Responsive image optimization and delivery for every website. Free plan for developers and personal websites. Includes free CDN, WebP and Lazy Loading out of the box.
  • Pinata IPFS — Pinata is the simplest way to upload and manage files on IPFS. Our friendly user interface combined with our IPFS API makes Pinata the easiest IPFS pinning service for platforms, creators, and collectors. 1 GB storage free along with access to API.
  • placeholder.com — A quick and simple image placeholder service
  • placekitten.com — A quick and simple service for getting pictures of kittens for use as placeholders
  • plot.ly — Graph and share your data. Free tier includes unlimited public files and 10 private files
  • podio.com — You can use Podio with a team of up to five people and try out the features of the Basic Plan, except user management
  • QuickChart — Generate embeddable image charts, graphs, and QR codes
  • redbooth.com — P2P file syncing, free for up to 2 users
  • Skynet — An open protocol for hosting data and web applications on the decentralized web using Sia. Free tier provides storage upto 100GB.
  • tinypng.com — API to compress and resize PNG and JPEG images, offers 500 compressions for free each month
  • transloadit.com — Handles file uploads and encoding of video, audio, images, documents. Free for Open source, charities, and students via the GitHub Student Developer Pack. Commercial applications get 2 GB free for test driving
  • twicpics.com - Responsive images as a service. It provides an image CDN, a media processing API and frontend library to automate image optimization. The service is free up to 3GB trafic/month.
  • uploadcare.com — Uploadcare provides media pipeline with ultimate toolkit based on cutting-edge algorithms. All features are available for developers absolutely for free: File Uploading API and UI, Image CDN and Origin Services, Adaptive Delivery and Smart Compression. Limit free tier has 3000 uploads, 3 GB traffic and 3 GB storage.
  • imagekit.io – Image CDN with automatic optimization, real-time transformation, and storage that you can integrate with existing setup in minutes. Free plan includes up to 20GB bandwidth per month.
  • internxt.com – Internxt Drive is a zero-knowledge file storage service that's based on absolute privacy and uncompromising security. Sign up and get 2 GB for free, forever!
  • degoo.com – AI based cloud storage with free up to 100 Gb, 5 devices, 500 Gb referral bonus (365 days account inactivity).

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Design and UI

  • AllTheFreeStock - a curated list of free stock images, audio and videos.
  • Ant Design Landing Page - Ant Design Landing Page provides a template built by Ant Motion's motion components. It has a rich homepage template, downloads the template code package, and can be used quickly. You can also use the editor to quickly build your own dedicated page.
  • Backlight — With collaboration between developers and designers at heart, Backlight is a very complete coding platform where teams build, document, publish, scale and maintain Design Systems.Free plan allows up to 3 editors working on 1 design system with unlimited viewers.
  • BoxySVG — A free installable Web app for drawing SVGs and exporting in svg,png,jpeg an other formats.
  • clevebrush.com — Free Graphics Design / Photo Collage App, also they offer paid integration of it as component.
  • cloudconvert.com — Convert anything to anything. 208 supported formats including videos to gif.
  • CodeMyUI - Handpicked collection of Web Design & UI Inspiration with Code Snippets.
  • ColorKit - Create color palettes online or get inspiration from top palettes.
  • coolors - Color palette generator. Free.
  • designer.io — Design tool for UI, illustrations and more. Has a native app. Free.
  • figma.com — Online, collaborative design tool for teams; free tier includes unlimited files and viewers with a max of 2 editors and 3 projects.
  • framer.com - Framer helps you iterate and animate interface ideas for your next app, website, or product—starting with powerful layouts. For anyone validating Framer as a professional prototyping tool: unlimited viewers, up to 2 editors, up to 3 projects.
  • Gradientos - Makes choosing a gradient fast and easy.
  • Icon Horse – Get the highest resolution favicon for any website from our simple API.
  • Icons8 — Icons, illustrations, photos, music, and design tools. Free Plan offers Limited formats in lower resolution. Link to Icons8 when you use our assets.
  • imagebin.ca — Pastebin for images.
  • Invision App - UI design and prototyping tool. Desktop and webapp available. Free to use with 1 active prototype.
  • landen.co — Generate, edit and publish beautiful websites and landing pages for your startup. All without code. Free tier allows you to have one website, fully customizable and published on the web.
  • lensdump.com - Free cloud image hosting.
  • Lorem Picsum - A Free tool, easy to use stylish placeholders. Just add your desired image size (width & height) after our URL, and you'll get a random image.
  • LottieFiles - The world’s largest online platform for the world’s smallest animation format for designers, developers, and more. Access Lottie animation tools and plugins for Android, iOS, and Web.
  • MagicPattern — A collection of CSS & SVG background generators & tools for gradients, patterns, and blobs.
  • marvelapp.com — Design, prototyping and collaboration, free plan limited to one user and one project.
  • Mindmup.com — Unlimited mind maps for free, and store them in the cloud. Your mind maps are available everywhere, instantly, from any device.
  • Mockplus iDoc - Mockplus iDoc is a powerful design collaboration & handoff tool. Free Plan includes 3 users and 5 projects with all features available.
  • mockupmark.com — Create realistic t-shirt and clothing mockups for social media and E-commerce, 40 free mockups.
  • Octopus.do — Visual sitemap builder. Build your website structure in real-time and rapidly share it to collaborate with your team or clients.
  • Pencil - Open source design tool using Electron.
  • Penpot - Web based, open source design and prototyping tool. Supports SVG. Completely free.
  • pexels.com - Free stock photos for commercial use. Has free API that allows you to search photos by keywords.
  • photopea.com — A Free, Advanced online design editor with Adobe Photoshop UI supporting PSD, XCF & Sketch formats (Adobe Photoshop, Gimp and Sketch App).
  • pixlr.com — Free online browser editor on the level of commercial ones.
  • Plasmic - A fast, easy to use, powerful web design tool and page builder that integrates into your codebase. Build responsive pages or complex components; optionally extend with code; and publish to production sites and apps.
  • Pravatar - Generate random/placeholder fake avatar, which url can be directly hotlinked in your web/app.
  • Proto.io - Create fully interactive UI prototypes without coding. Free tier available when free trial ends. Free tier includes: 1 user, 1 project, 5 prototypes, 100MB online storage and preview in proto.io app.
  • resizeappicon.com — A simple service to resize and manage your app icons.
  • Rive — Create and ship beautiful animations to any platform. Free forever for Individuals. The service is a editor which hosts all the graphics on their servers as well. They also provide runtimes for many platforms to run graphics made using Rive.
  • smartmockups.com — Create product mockups, 200 free mockups.
  • tabler-icons.io — Over 1500 free copy and paste SVG editable icons.
  • UI Avatars - Generate avatars with initials from names. Which the urls can be directly hotlinked in your web/app. Support config parameters via the url.
  • unDraw - A constantly updated collection of beautiful svg images that you can use completely free and without attribution.
  • unsplash.com - Free stock photos for commercial and noncommercial purposes (do-whatever-you-want license).
  • vectr.com — Free Design App for Web + Desktop.
  • walkme.com — Enterprise Class Guidance and Engagement Platform, free plan 3 walk-thrus up to 5 steps/walk.
  • Webflow - WYSIWYG web site builder with animations and website hosting. Free for 2 projects.
  • Updrafts.app - WYSIWYG web site builder for tailwindcss based designs. Free for non-commercial usage.
  • whimsical.com - Collaborative flowcharts, wireframes, sticky notes and mind maps. Create up to 4 free boards.
  • Zeplin — Designer and developer collaboration platform. Show designs, assets and styleguides. Free for 1 project.
  • Pixelixe — Create and edit engaging and unique graphics and images online.
  • Responsively App - A free dev-tool for faster and precise responsive web application development.
  • SceneLab - Online mockup graphics editor with an ever-expanding collection of free design templates
  • xLayers - Preview and convert Sketch design files into Angular, React, Vue, LitElement, Stencil, Xamarin and more (free and open source at https://github.com/xlayers/xlayers)
  • Grapedrop — Responsive, powerful, SEO optimized web page builder based on GrapesJS Framework. Free for first 5 pages, unlimited custom domains, all features and simple usage.
  • Mastershot - Completely free browser-based video editor. No watermark, up to 1080p export options.
  • Unicorn Platform - Effortless landing page builder with hosting. 1 website for free.
  • react-favicon.com - Generate Favicons for your web site using React and JSX using any font and icon library.
  • svgrepo.com - Explore, search and find the best fitting icons or vectors for your projects using wide variety vector library. Download free SVG Vectors for commercial use.
  • haikei.app - Haikei is a web app to generate unique SVG shapes, backgrounds, and patterns – ready to use with your design tools and workflow.

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Design Inspiration

  • awwwards. - [Top websites] A showcases of all the best designed websites (voted on by designers).
  • Behance - [Desing showcase] A place where designers showcase their work. Filterable with categories for UI/UX projects.
  • dribbble - [Design showcase] Unique design inspiration, generally not from real applications.
  • Mobbin - [Mobile screenshots] Save hours of UI & UX research with our library of 50,000+ fully searchable mobile app screenshots.
  • Mobile Patterns - [Mobile screenshots] A design inspirational library featuring finest UI UX Patterns (iOS and Android) for designers, developers, and product makers to reference.
  • Screenlane - [Mobile screenshots] Get inspired and keep up with the latest web & mobile app UI design trends. Filterable by pattern and app.
  • scrnshts - [Mobile screenshots] A hand-picked collection of the finest app store design screenshots.
  • UI Garage - [Mobile and web screenshots] Daily UI inspiration & patterns for designers, developers to find inspiration, tools and the best resources for your project.

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Data Visualization on Maps

  • IP Geolocation — Free DEVELOPER plan available with 30K requests/month.
  • carto.com — Create maps and geospatial APIs from your data and public data.
  • developers.arcgis.com — APIs and SDKs for maps, geospatial data storage, analysis, geocoding, routing, and more across web, desktop, and mobile. 2,000,000 free basemap tiles, 20,000 non-stored geocodes, 20,000 simple routes, 5,000 drive time calculations, 5GB free tile+data storage per month.
  • Foursquare - Location discovery, venue search, and context-aware content from Places API and Pilgrim SDK.
  • geoapify.com - Vector and raster map tiles, geocoding, places, routing, isolines APIs. 3000 free requests / day.
  • geocod.io — Geocoding via API or CSV Upload. 2,500 free queries/day.
  • geocodify.com — Geocoding and Geoparsing via API or CSV Upload. 10k free queries/month.
  • geojs.io - Highly available REST/JSON/JSONP IP Geolocation lookup API.
  • giscloud.com — Visualize, analyze and share geo data online.
  • gogeo.io — Maps and geospatial services with an easy to use API and support for big data.
  • graphhopper.com A free package for developers is offered for Routing, Route Optimization, Distance Matrix, Geocoding, Map Matching.
  • here — APIs and SDKs for maps and location-aware apps. 250k transactions/month for free.
  • mapbox.com — Maps, geospatial services and SDKs for displaying map data.
  • maptiler.com — Vector maps, map services and SDKs for map visualisation. Free vector tiles with weekly update and four map styles.
  • opencagedata.com — Geocoding API that aggregates OpenStreetMap and other open geo sources. 2,500 free queries/day.
  • osmnames — Geocoding, search results ranked by the popularity of related Wikipedia page.
  • positionstack - Free geocoding for global places and coordinates. 25.000 Requests per month for personal use.
  • stadiamaps.com — Map tiles, routing, navigation, and other geospatial APIs. 2,500 free map views and API requests / day for non-commercial usage and testing.
  • maps.stamen.com - Free map tiles and tile hosting.
  • GeocodeAPI - Geocode API: Address to Coordinate Conversion & Geoparsing based on Pelias. Batch geocoding via CSV. 350000 free requests/month.
  • Geokeo api - Geocoding api with language correction and more. Worldwide coverage. 2,500 free daily queries

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Package Build System

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IDE and Code Editing

  • 3v4l - Free online PHP shell and snippet sharing site, runs your code in 300+ PHP versions
  • Android Studio — Android Studio provides the fastest tools for building apps on every type of Android device. Open Source IDE, free for everyone and the best to develop Android apps. Available for Windows,Mac,Linux and even ChromeOS!
  • Apache Netbeans — Development Environment, Tooling Platform and Application Framework.
  • apiary.io — Collaborative design API with instant API mock and generated documentation (Free for unlimited API blueprints and unlimited user with one admin account and hosted documentation).
  • Atom - Atom is a hackable text editor built on Electron.
  • Binder - Turn a Git repo into a collection of interactive notebooks. It is a free, public service.
  • BlueJ — A free Java Development Environment designed for beginners, used by millions worldwide. Powered by Oracle & simple GUI to help beginners.
  • Bootify.io - Spring Boot app generator with custom database and REST API.
  • cacher.io — Code snippet organizer with labels and support for 100+ programming languages.
  • Code::Blocks — Free Fortran & C/C++ IDE. Open Source and runs on Windows,macOS & Linux.
  • codiga.io — Coding Assistant that lets you search, define and reuse code snippets directly in your IDE. Free for individual and small organizations.
  • codesnip.com.br — Simple code snippets manager with categories, search and tags. free and unlimited.
  • cocalc.com — (formerly SageMathCloud at cloud.sagemath.com) — Collaborative calculation in the cloud. Browser access to full Ubuntu with built-in collaboration and lots of free software for mathematics, science, data science, preinstalled: Python, LaTeX, Jupyter Notebooks, SageMath, scikitlearn, etc.
  • code.cs50.io - Visual Studio Code for CS50 is a web app at code.cs50.io that adapts GitHub Codespaces for students and teachers.
  • codepen.io — CodePen is a playground for the front end side of the web.
  • codesandbox.io — Online Playground for React, Vue, Angular, Preact and more.
  • Components.studio - Code components in isolation, visualize them in stories, test them and publish them on npm.
  • Eclipse Che - Web based and Kubernetes-Native IDE for Developer Teams with multi-language support. Open Source and community driven. A online instance hosted by Red Hat is available at workspaces.openshift.com.
  • fakejson.com — FakeJSON helps you quickly generate fake data using its API. Make an API request describing what you want and how you want it. The API returns it all in JSON. Speed up the go to market process for ideas and fake it till you make it.
  • gitpod.io — Instant, ready-to-code dev environments for GitHub projects. Free for open source.
  • ide.goorm.io goormIDE is full IDE on cloud. multi-language support, linux-based container via the fully-featured web-based terminal, port forwarding, custom url, real-time collaboration and chat, share link, Git/Subversion support. There are many more features (free tier includes 1GB RAM and 10GB Storage per container, 5 Container slot).
  • JDoodle — Online compiler and editor for more than 60 programming languages with a free plan for REST API code compiling up to 200 credits per day.
  • jetbrains.com — Productivity tools, IDEs and deploy tools (aka IntelliJ IDEA, PyCharm, etc). Free license for students, teachers, Open Source and user groups.
  • jsbin.com — JS Bin is another playground and code sharing site of front end web (HTML, CSS and JavaScript. Also supports Markdown, Jade and Sass).
  • jsfiddle.net — JS Fiddle is a playground and code sharing site of front end web, support collaboration as well.
  • JSONPlaceholder Some REST API endpoints that return some fake data in JSON format. The source code is also available if you would like to run the server locally.
  • Katacoda — Interactive learning and training platform for software engineers helping developers learn and companies increase adoption.
  • Lazarus — Lazarus is a Delphi compatible cross-platform IDE for Rapid Application Development.
  • micro-jaymock - Tiny API mocking microservice for generating fake JSON data.
  • mockable.io — Mockable is a simple configurable service to mock out RESTful API or SOAP web-services. This online service allows you to quickly define REST API or SOAP endpoints and have them return JSON or XML data.
  • mockaroo — Mockaroo lets you generate realistic test data in CSV, JSON, SQL, and Excel formats. You can also create mocks for back-end API.
  • Mocklets - a HTTP-based mock API simulator, which helps simulate APIs for faster parallel development and more comprehensive testing, with lifetime free tier.
  • Paiza — Develop Web apps in Browser without having the need to setup anything. Free Plan offers 1 server with 24 hours lifetime and 4 hours running time per day with 2 CPU cores, 2 GB RAM and 1 GB storage.
  • Prepros - Prepros can compile Sass, Less, Stylus, Pug/Jade, Haml, Slim, CoffeeScript and TypeScript out of the box, reloads your browsers and makes it really easy to develop & test your websites so you can focus on making them perfect. You can also add your own tools with just a few clicks.
  • Replit — A cloud coding environment for various program languages.
  • SoloLearn — A cloud programming playground well-suited for running code snippets. Supports various programming languages. No registration required for running code but required when you need to save code on their platform. Also offers free courses for begginers and intermediate level coders.
  • stackblitz.com — Online/Cloud Code IDE to create, edit, & deploy fullstack apps. Support any popular NodeJs based frontend & backend frameworks. Shortlink to create new project: https://node.new.
  • Visual Studio Code - Code editor redefined and optimized for building and debugging modern web and cloud applications. Developed by Microsoft for Windows, macOS and Linux.
  • Visual Studio Community — Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).
  • VSCodium - Community-driven, without telemetry/tracking, and freely-licensed binary distribution of Microsoft’s editor VSCode
  • wakatime.com — Quantified self-metrics about your coding activity, using text editor plugins, limited plan for free.
  • WebComponents.dev — In-browser IDE to code web components in isolation with 58 templates available, supporting stories and tests.
  • PHPSandbox — Online developement environment for PHP.

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Analytics, Events and Statistics

  • Statvoo Analytics — Forever FREE Customer Analytics for ALL your websites, with Unlimited Events per month
  • Avo — Simplified analytics release workflow. Single-source-of-truth tracking plan, type safe analytics tracking library, in-app debuggers, data observability to catch all data issues before you release. Free for 2 workspace members and 1 hour data observability lookback.
  • Branch — Mobile Analytics Platform. Free Tier offers upto 10K Mobile App Users with deep-linking & other services.
  • Census — Reverse ETL & Operational Analytics Platform. Sync 10 fields from your data warehouse to 60+ SaaS like Salesforce, Zendesk, or Amplitude.
  • Clicky — Website Analytics Platform. Free Plan for 1 website with 3000 views analytics.
  • Databox — Business Insights & Analytics by combining other analytics & BI platforms. Free Plan offers 3 users, dashboards & data sources. 11M historical data records.
  • Deploy With Flags — Feature Flags Service. Free for individual developers managing flags for a single project.
  • indicative.com — Customer analytics platform to optimize customer engagement, increase conversion, and improve retention. Free up to 25M events/month, 6 months data retention.
  • Panelbear.com — Blazingly fast and private, free tier includes 5,000 pageviews per month for unlimited websites
  • Hitsteps.com — 2,000 pageviews per month for 1 website
  • amplitude.com — 1 million monthly events, up to 2 apps
  • Flagsmith - Release features with confidence; manage feature flags across web, mobile, and server side applications. Use our hosted API, deploy to your own private cloud, or run on-premise
  • GoatCounter — GoatCounter is an open source web analytics platform available as a hosted service (free for non-commercial use) or self-hosted app. It aims to offer easy to use and meaningful privacy-friendly web analytics as an alternative to Google Analytics or Matomo. Free tier is for non-commerical use and includes unlimited number of sites, 6 months of data retention, and 100k pageviews/month.
  • Google Analytics — Google Analytics
  • Expensify — Expense reporting, free personal reporting approval workflow
  • getinsights.io - Privacy-focused, cookie free analytics, free for up to 5k events/month.
  • heap.io — Automatically captures every user action in iOS or web apps. Free for up to 5,000 visits/month
  • Hotjar — Website Analytics and Reports . Free Plan allows 2000 pageviews/day. 100 snapshots/day (max capacity: 300). 3 snapshot heatmaps which can be stored for 365 days. Unlimited Team Members.
  • Keen — Custom Analytics for data collection, analysis and visualization. 50,000 events/month free
  • Yandex.Metrica — Unlimited free analytics
  • Mixpanel — 100,000 monthly tracked users, unlimited data history and seats, US or EU data residency
  • Moesif — API analytics for REST and GraphQL. (Free up to 500,000 API calls/mo)
  • Molasses - Powerful feature flags and A/B testing. Free up to 3 environments with 5 feature flags each.
  • optimizely.com — A/B Testing solution, free starter plan, 1 website, 1 iOS and 1 Android app
  • Microsoft PowerBI — Business Insights & Analytics by Microsoft. Free Plan offers limited use with 1 Million User licenses.
  • quantcast.com — Unlimited free analytics
  • sematext.com — Free for up to 50 K actions/month, 1-day data retention, unlimited dashboards, users, etc.
  • Similar Web — Analytics for Web & Mobile Apps. Free Plan offers 5 results per metric, 1 month of mobile app data & 3 months of website data.
  • StatCounter — Website Viewer Analytics. Free plan for analytics of 500 most recent visitors.
  • Swetrix Analytics — Privacy-focused web analytics. Free plan includes up to 5000 events per month.
  • Tableau Developer Program — Innovate, create, and make Tableau work perfectly for your organization. Free developer program gives a personal development sandbox license for Tableau Online. The version is the latest pre-release version so Data Devs can test each & every feature of this superb platform.
  • usabilityhub.com — Test designs and mockups on real people, track visitors. Free for one user, unlimited tests
  • woopra.com — Free user analytics platform for 500K actions, 90 day data retention, 30+ one click integration.
  • counter.dev — Web analytics made simple and therefore privacy friendly. Free or pay what you want by donation.
  • PostHog - Full Product Analytics suite free for up to 1m tracked events per month
  • Uptrace - Distributed Tracing Tool that helps developers pinpoint failures and find performance bottlenecks. Has a free plan, offers a free Personal subscription for open source projects, and has an open source version.

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Visitor Session Recording

  • Visualime.com — Free and unlimited session recordings, no traffic limits
  • Reactflow.com — Per site: 1,000 pages views/day, 3 heatmaps, 3 widgets, free bug tracking
  • LogRocket.com - 1,000 sessions/month with 30 day retention, error tracking, live mode
  • FullStory.com — 1,000 sessions/month with 1 month data retention and 3 user seats. More information here.
  • hotjar.com — Per site: 2,000 pages views/day, 3 heatmaps, data stored for 3 months,...
  • inspectlet.com — 2,500 sessions/month free for 1 website
  • livesession.io — 5,000 sessions/month free for 1 website
  • Microsoft Clarity - Session recording completely free with "no traffic limits", no project limits, and no sampling
  • mouseflow.com — 500 sessions/month free for 1 website
  • mousestats.com — 100 sessions/month free for 1 website
  • smartlook.com — free packages for web and mobile apps (1500 sessions/month), 3 heatmaps, 1 funnel, 1-month data history
  • usersurge.com — 250K sessions per month for individuals.
  • howuku.com — Track user interaction, engagement, and event. Free for up to 5,000 visits/month
  • UXtweak.com — Record and watch how visitors use your web site or app. Free unlimited time for small projects

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International Mobile Number Verification API and SDK

  • Cognalys — Freemium mobile number verification through an innovative and reliable method than using SMS gateway. Free 10 tries and 15 verifications/day
  • numverify — Global phone number validation and lookup JSON API. 250 API requests/month
  • veriphone — Global phone number verification in a free, fast, reliable JSON API. 1000 requests/month

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Payment and Billing Integration

  • CurrencyFreaks — Provides current and historical currency exchange rates. Free DEVELOPER plan available with 1000 requests/month.
  • CurrencyApi — Live Currency Rates for Physical and Crypto currencies, delivered in JSON and XML. Free tier offers 1,250 API requests/month.
  • currencylayer — Reliable Exchange Rates and Currency Conversion for your Business, 1,000 API requests/month free
  • currencystack.io — Production-ready real-time exchange rates for 154 currencies.
  • exchangerate-api.com - An easy to use currency conversion JSON API. Free tier with no request limit.
  • FraudLabsPRO — Help merchants to prevent payment fraud and chargebacks. Free Micro Plan available with 500 queries/month.
  • MailPopin - Get the most of your Stripe notifications with contextualized information.
  • Nami ML - Complete platform for in-app purchases and subscriptions on iOS and Android, including no-code paywalls, CRM, and analytics. Free for all base features to run an IAP business.
  • RevenueCat — Hosted backend for in-app purchases and subscriptions (iOS and Android). Free up to $10k/mo in tracked revenue.
  • vatlayer — Instant VAT number validation and EU VAT rates API, free 100 API requests/month
  • Freecurrencyapi.net — Free currency conversion and exchange rate data API. 10 requests/hour without an API key, 50 000 requests per month when you register for free.

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  • canister.io — 20 free private repositories for developers, 30 free private repositories for teams to build and store Docker images
  • Container Registry Service - Harbor based Container Management Solution. Free tier offers 1 GB storage for private repositories.
  • Docker Hub — One free private repository and unlimited public repositories to build and store Docker images
  • Play with Docker — A simple, interactive and fun playground to learn Docker.
  • quay.io — Build and store container images with unlimited free public repositories
  • Platform9 - Managed Kubernetes plane. Free plan offers management capabilities up to 3 clusters & 20 nodes. Note: you must provide cluster infrastructure by yourself.

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Dev Blogging Sites

  • BearBlog - Minimalist, and Markdown powered blog and website builder.
  • Dev.to - Where programmers share ideas and help each other grow.
  • Hashnode — Hassle-free Blogging Software for Developers!.
  • Medium — Get smarter about what matters to you.

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Commenting Platforms

  • Staticman - Staticman is a Node.js application that receives user-generated content and uploads it as data files to a GitHub and/or GitLab repository, using Pull Requests.
  • GraphComment - GraphComment is a comments platform that helps you build an active community from website’s audience.
  • Utterances - A lightweight comments widget built on GitHub issues. Use GitHub issues for blog comments, wiki pages and more!
  • Disqus - Disqus is a networked community platform used by hundreds of thousands of sites all over the web.

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Screenshot APIs

  • ApiFlash — A screenshot API based on Aws Lambda and Chrome. Handles full page, capture timing, viewport dimensions, ...
  • microlink.io – It turns any website into data such as metatags normalization, beauty link previews, scraping capabilities or screenshots as a service. 250 reqs/day every day free.
  • ScreenshotAPI.net - Screenshot API use one simple API call to generate screenshots of any website. Build to scale and hosted on Google Cloud. Offers 100 free screenshots per month.
  • screenshotlayer.com — Capture highly customizable snapshots of any website. Free 100 snapshots/month
  • screenshotmachine.com — Capture 100 snapshots/month, png, gif and jpg, including full-length captures, not only home page
  • PhantomJsCloud — Browser automation and page rendering. Free Tier offers up to 500 pages/day. Free Tier since 2017.
  • Webshrinker.com — Web Shrinker provides web site screenshot and domain intelligence API services. Free 100 requests/month.
  • Httpic.com — Turn any website into jpg, png or pdf. Capture full page screenshots, adjust viewport, inject custom code. Free tier at 150 images / month.

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  • FlutLab - FlutLab is a modern Flutter online IDE and the best place to create, debug, and build cross-platform projects. Build iOS (Without Mac) and Android apps with Flutter.
  • CodeMagic - Codemagic is a fully hosted and managed CI/CD for mobile apps. You can build, test, deploy with a GUI based CI/CD tool. Free tier offers 500 free minutes/month, and Mac Mini instance with 2.3Ghz and 8gb of RAM.
  • FlutterFlow - FlutterFlow is a browser-based drag-and-drop interface to build mobile app using flutter.

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Browser based hardware emulation written in Javascript

  • JsLinux — a really fast x86 virtual machine capable of running Linux and Windows 2k.
  • Jor1k — a OpenRISC virtual machine capable of running Linux with network support.
  • v86 — a x86 virtual machine capable of running Linux and other OS directly into the browser.

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Privacy Management

  • Bearer - Helps implement privacy by design via audits and continuous workflows so that organizations comply with GDPR and other regulations. Free tier is limited to smaller teams and SaaS version only.
  • Osano - Consent management and compliance platform with everything from GDPR representation to cookie banners. Free tier offers basic features.
  • Iubenda - Privacy and cookie policies along with consent management. Free tier offers limited privacy and cookie policy as well as cookie banners.
  • Cookiefirst - Cookie banners, auditing, and multi-language consent management solution. Free tier offers a one-time scan and a single banner.
  • Ketch - Consent management and privacy framework tool. Free tier offers most features with a limited visitor count.

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Miscellaneous

  • Smartcar API - An API for cars to locate, get fuel tank, battery levels, odometer, unlock/lock doors, etc.
  • Blynk — A SaaS with API to control, build & evaluate IoT devices. Free Developer Plan with 5 devices,Free Cloud & data storage. Mobile Apps also available.
  • Bricks Note Calculator - a note-taking app (PWA) with a powerful built-in multiline calculator.
  • Carbon.now.sh - create and share code snippet in an aesthetic screenshot-like image format. Usually used to aesthetically share/show-off code snippet on Twitter or blog posts.
  • Code Time - an extension for time-tracking and coding metrics in VS Code, Atom, IntelliJ, Sublime Text, and more.
  • Codepng - Create awesome snapshots from your source code that you can share on social media.
  • CodeToImage - Create screenshots of code or text to share on social media.
  • ConfigCat - Cross-platform feature flag service. SDKs for all major languages. Free plan up to 10 flags, 2 environments, 1 product and 5 Million requests per month. Unlimited user seats. Students get 100 flags and 100 Million requests per month for free.
  • datelist.io - Online booking / appointment scheduling system. Free up to 5 bookings per month, includes 1 calendar
  • docsapp.io — Easiest way to publish documentation, free for Open Source
  • Elementor — WordPress website builder. Free plan available with 40+ Basic Widgets.
  • Form2Channel — Place a static html form on your website and receive submissions directly to Google Sheets, Email, Slack, Telegram or Http. No coding necessary.
  • FOSSA - Scalable, end-to-end management for third-party code, license compliance and vulnerabilities.
  • fullcontact.com — Help your users know more about their contacts by adding social profile into your app. 500 free Person API matches/month
  • http2.pro — HTTP/2 protocol readiness test and client HTTP/2 support detection API.
  • JWT Decoder — Online free tool for decoding JWT(JSON web token) and verifying it's signature.
  • Base64 decoder/encoder — Online free tool for decoding & encoding data.
  • newreleases.io - Receive notifications on email, Slack, Telegram, Discord and custom webhooks for new releases from GitHub, GitLab, Bitbucket, Python PyPI, Java Maven, Node.js NPM, Node.js Yarn, Ruby Gems, PHP Packagist, .NET NuGet, Rust Cargo and Docker Hub.
  • OnlineExifViewer — View EXIF data online instantly for a photo including GPS location and metadata.
  • PDFMonkey — Manage PDF templates in a dashboard, call the API with dynamic data, download your PDF. Offers 1000 free documents per month.
  • QuickType.io - Quickly auto generate models/class/type/interface and serializers from JSON, schema, and GraphQL for working with data quickly & safely in any programming language. Convert JSON into gorgeous, typesafe code in any language.
  • ray.so - Create beautiful images of your code snippets.
  • readme.com — Beautiful documentation made easy, free for Open Source.
  • redirection.io — SaaS tool for managing HTTP redirections for businesses, marketing and SEO.
  • redirect.pizza - Easily manage redirects with HTTPS support. Free plan includes 10 sources and 100.000 hits per month.
  • ReqBin — Post HTTP Requests Online. Popular Request Methods include GET, POST, PUT, DELETE, and HEAD. Supports Headers and Token Authentication. Includes a basic login system for saving your requests.
  • Sunrise and Sunset - Get sunrise and sunset times for a given longitude and latitude.
  • superfeedr.com — Real-time PubSubHubbub compliant feeds, export, analytics. Free with less customization
  • SurveyMonkey.com — Create online surveys. Analyze the results online. Free plan allows only 10 questions and 100 responses per survey.
  • videoinu — Create and edit screen recordings and other videos online.
  • RandomKeygen - A free mobile-friendly tool offers a variety of randomly generated keys and passwords you can use to secure any application, service or device.
  • Cronhooks - Schedule on time or recurring webhooks. Free plan allows 5 ad-hoc schedules.
  • Hook Relay - Add webhook support to your app without the hassles: done-for-you queueing, retries with backoff, and logging. The free plan has 100 deliveries per day, 14-day retention, and 3 hook endpoints.
  • Format Express - Instant online formatter for JSON / XML / SQL.

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Remote Desktop Tools

  • Getscreen.me — Free for 2 devices, no limits on the number and duration of sessions
  • Apache Guacamole™ — Open source clientless remote desktop gateway
  • RemSupp — On-demand support and permanent access to devices (2 sessions/day for free)

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Game Development

  • itch.io — Free/Paid assets like sprites, tile sets, character packs, ...
  • GameDevMarket — Free/Paid assets like 2D, 3D, Audio, GUI.
  • OpenGameArt — OpenSource Game Assets like music, sounds, sprites, gifs, ...
  • CraftPix — Free/Paid assets like 2D, 3D, Audio, GUI, backgrounds, icons, tile sets, game kits.
  • LoSpec — Online tools for creating pixel art and other restrictive digital art, lots of tutorials/pallet list available to choose for you games
  • ArtStation - MarketPlace for Free/Paid 2D, 3D assets & audios, icons, tile sets, game kits,..., Also, It can be used for showcasing your art portfolio.
  • Rive - Community assets as well as create your own game assets using its free plan.

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Other Free Resources

  • get.localhost.direct — A better *.localhost.direct Wildcard public CA signed SSL cert for localhost development with sub-domain support
  • Framacloud — A list of Free/Libre Open Source Software and SaaS by the French non-profit Framasoft.
  • getawesomeness — Retrieve all amazing awesomeness from GitHub... a must see
  • github.com — FOSS for Dev — A hub of free and Open Source software for developers.
  • GitHub Education — Collection of free services for students. Registration required.
  • Microsoft 365 Developer Program — Get a free sandbox, tools, and other resources you need to build solutions for the Microsoft 365 platform. The subscription is a 90-day Microsoft 365 E5 Subscription (Windows excluded) which is renewable. It is renewed if you're active in development(measured using telemetry data & algorithms).
  • RedHat for Developers — Free access to Red Hat products including RHEL,OpenShift,CodeReady etc exclusively for developers. Individual plan only. Free e-Books also offered for reference.
  • smsreceivefree.com — Provides free temporary and disposable phone numbers.
  • simplebackups.io — Backup automation service for servers and databases (MySQL, PostgreSQL, MongoDB) stored directly into cloud storage providers (AWS, DigitalOcean, Backblaze...). Provides free plan for 1 backup.
  • SnapShooter — Backup solution for DigitalOcean, AWS, LightSail, Hetzner and Exoscale, with support for direct database, file system and application backups to s3 based storage. Provides a free plan with daily backups for one resource.
  • Themeselection — Selected high quality, modern design, professional and easy-to-use Free Admin Dashboard Template, HTML Themes and UI Kits to create your applications faster!
  • Web.Dev — This is a free tool that allows you to see the performance of your website and improve the SEO to get higher rank list in search engines.
  • SmallDev.tools — A free tool for developers that allows you to Encode/Decode various formats, Minify HTML/CSS/Javascript, Beautify, Generate Fake/Testing real like dataset in JSON/CSV & multiple other formats and many more features. With a delightful interface.
  • UseCSV by Layercode — Add CSV and Excel import to your web app in minutes. Give your users an enjoyable and robust data import experience. Get Started for Free without any credit card details, and start integrating UseCSV today. You can create unlimited Importers and upload files up to 100Mb.
  • Buttons Generator — 100+ buttons you can use in your project.

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Contribute to this list: https://github.com/ripienaar/free-for-dev