The largest Open-Source UI Library! Community-made and free to use. Made with either CSS or Tailwind.

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

Define and run multi-container applications with Docker

A set of free MIT-licensed high-quality SVG icons for UI development.

Create the next immutable state by mutating the current one

Next generation frontend tooling. It's fast!

UI Library for Design Engineers. Animated components and effects you can copy and paste into your apps. Free. Open Source.

A modern JavaScript utility library delivering modularity, performance, & extras.

Fast, unopinionated, minimalist web framework for node.

Developer-first error tracking and performance monitoring

Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala

Quickly rewrite git repository history (filter-branch replacement)

Redefined chart library built with React and D3

Beautiful and accessible drag and drop for lists with React

Beautiful and accessible drag and drop for lists with React.

🌼 🌼 🌼 🌼 🌼  The most popular, free and open-source Tailwind CSS component library

📋 React Hooks for form state management and validation (Web React Native)

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

Collection of TypeScript type challenges with online judge

A list of developer portfolios for your inspiration

A light-weight, no-dependency, vanilla JavaScript engine to drive the user's focus across the page

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

A utility-first CSS framework for rapid UI development.

Radix Themes is an open-source component library optimized for fast development, easy maintenance, and accessibility. Maintained by @workos.

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

⚡️ Simple, Modular & Accessible UI Components for your React Applications

An enterprise-class UI design language and React UI library

Keep React is an open-source component library built on Tailwind CSS and React.js. It provides a versatile set of pre-designed UI components to build modern web applications.

Custom themes repository for Warp, a blazingly fast modern terminal built in Rust.

Warp is a modern, Rust-based terminal with AI built in so you and your team can build great software, faster.