freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Virtual whiteboard for sketching hand-drawn like diagrams

JavaScript API for Chrome and Firefox

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

Easy to maintain open source documentation websites.

Autonomous coding agent right in your IDE, capable of creating/editing files, executing commands, using the browser, and more with your permission every step of the way.

🐻 Bear necessities for state management in React

Appwrite® - The developers' cloud

Build AI Agents, Visually

very good whiteboard infinite canvas SDK

Presentation Slides for Developers

🐉 Vue Component Framework

Building a modern alternative to Salesforce, powered by the community.

Lerna is a fast, modern build system for managing and publishing multiple JavaScript/TypeScript packages from the same repository.

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..

The flexible backend for all your projects 🐰 Turn your DB into a headless CMS, admin panels, or apps with a custom UI, instant APIs, auth & more.

The world's most flexible commerce platform.

A completely customizable framework for building rich text editors. (Currently in beta.)

The next open source file uploader for web browsers 🐶

The open source frontend for GitBook doc sites

Get to green PRs in half the time. Nx optimizes your builds, scales your CI, and fixes failed PRs. Built for developers and AI agents.

🚀 Beautiful, fast and modern React UI library. (Previously NextUI)

Free and Open source Web Builder Framework. Next generation tool for building templates without coding

📨 The ultimate social media scheduling tool, with a bunch of AI 🤖

A Foundation for Scalable Cross-Platform Apps

Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)

A fast, local first, reactive Database for JavaScript Applications https://rxdb.info/