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.

Production-ready platform for agentic workflow development.

Virtual whiteboard for sketching hand-drawn like diagrams

A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Model Context Protocol Servers

🔥 The Web Data API for AI - Turn entire websites into LLM-ready markdown or structured data

Easy to maintain open source documentation websites.

🐻 Bear necessities for state management in React

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB

very good whiteboard infinite canvas SDK

React Hooks — 👍

Presentation Slides for Developers

TypeScript-first schema validation with static type inference

Context7 MCP Server -- Up-to-date code documentation for LLMs and AI code editors

⏳ Modern JavaScript date utility library ⌛️

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

React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely cust…

A one-of-a-kind resume builder that keeps your privacy in mind. Completely secure, customizable, portable, open-source and free forever. Try it out today!

The headless rich text editor framework for web artisans.

A React Framework for building internal tools, admin panels, dashboards & B2B apps with unmatched flexibility.

A modern animation library for React and JavaScript

🇨🇭 A React renderer for Three.js

✌️ A spring physics based React animation library

Simple, scalable state management.

Authentication for the Web.

Redefined chart library built with React and D3