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

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.

An enterprise-class UI design language and React UI library

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

A utility-first CSS framework for rapid UI development.

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

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

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

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

Build Better Websites. Create modern, resilient user experiences with web fundamentals.

A modern animation library for React and JavaScript

🇨🇭 A React renderer for Three.js

The best way to start a full-stack, typesafe Next.js app

Authentication for the Web.

Make images smaller using best-in-class codecs, right in the browser.

The most comprehensive authentication framework for TypeScript

Bootstrap components built with React

Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.

💌 Build and send emails using React

Develop. Preview. Ship.

Build cross-platform Native Progressive Web Apps for iOS, Android, and the Web ⚡️

Simple, powerful and flexible site generation framework with everything you love from Next.js.

Invoicing, Time tracking, File reconciliation, Storage, Financial Overview & your own Assistant made for Freelancers

Create badass, fluid and smooth transitions between your website’s pages

svg react icons of popular icon packs

Smooth scroll at it should be

Fast drag and drop for any experience on any tech stack

Motion design editor for the web