freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.

Visual Studio Code

Material UI: Ready-to-use foundational React components, free forever. It includes Material UI, which implements Google's Material Design.

A utility-first CSS framework for rapid UI development.

Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Apache ECharts is a powerful, interactive charting and data visualization library for browser

Easy to maintain open source documentation websites.

Quill is a modern WYSIWYG editor built for compatibility and extensibility

Collection of TypeScript type challenges with online judge

React Hooks — 👍

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

✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML, CSV and more, into interactive graphs.

Transforming styles with JS plugins

The headless rich text editor framework for web artisans.

A fully featured React components library

Lit is a simple library for building fast, lightweight web components.

An open source application built using the new router, server components and everything new in Next.js 13.

Visualize Your Ideas With Code

Seamless REST/GraphQL API mocking library for browser and Node.js.

A local-first personal finance app

nivo provides a rich set of dataviz components, built on top of the awesome d3 and React libraries

The best JavaScript Data Table for building Enterprise Applications. Supports React / Angular / Vue / Plain JavaScript.

The modern, lightweight, performant, accessible and extensible drag & drop toolkit for React.

Decorator-based property validation for classes.

Former GUI client for gRPC services. No longer maintained.

Performant financial charts built with HTML5 canvas

An interactive TypeScript tutorial for beginners

A beautiful home server OS for self-hosting with an app store. Buy a pre-built Umbrel Home with umbrelOS, or install on a Raspberry Pi or any x86 system.

Connect, collaborate, and grow with a community of TypeScript developers