Fast, easy and reliable testing for anything that runs in a browser.

Fast, accurate & comprehensive text measurement & layout

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

The largest open-source library of animated, interactive, and customizable React & Next.js components for building standout web products and experiences. Built for humans and AI agents.

Modern CSS framework based on Flexbox

Access AJAX, WebSockets and Server Sent Events directly in HTML

Scheduling infrastructure for absolutely everyone.

Presentation Slides for Developers

Fast 2KB date library alternative to Moment.js with the same modern API

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

Collection of TypeScript type challenges with online judge

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

The Prisma ORM: write your application in TypeScript with human-readable queries instead of SQL. Host your database on Prisma Postgres and your app on Prisma Compute.

A browser based code editor

The Secure CommsOS for mission-critical operations

A tool for writing better scripts

JavaScript library for mobile-friendly interactive maps

Open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

Delightful JavaScript Testing.

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

A terminal built on web technologies

A unified trading API with more than 100 crypto exchanges and prediction markets in JavaScript / TypeScript / Python / C# / PHP / Go / Java / Rust

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

TypeScript-first schema validation with static type inference

A compiler for writing next generation JavaScript.

Collection of essential React Hooks

Node.js/Typescript/Bun Production Process Manager with a built-in Load Balancer.

Component classes to Tailwind CSS

Free and open-source HTML Dashboard UI Kit built on Bootstrap 4

Most modern mobile touch slider with hardware accelerated transitions