The Block Editor project for WordPress and beyond. Plugin is available from the official repository.

Nonprofit, open-source platform to post, vote, and deliberate, with no ads and no algorithms. React frontend, a GraphQL API, and a MongoDB backend, making it approachable for contributors familiar with modern JavaScript frameworks.

Beautifier for javascript

Fast and low overhead web framework, for Node.js

The AMP web component framework.

A pure JavaScript implementation of git for node and browsers!

Less. The dynamic stylesheet language.

Solid server on top of the file-system in NodeJS

A logger for just about everything.

the package manager for JavaScript

The Ember.js command line utility.

A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3 and Oracle, designed to be flexible, portable, and fun to use.

SVG icons for popular brands

A mighty CSS linter that helps you avoid errors and enforce conventions.

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

Search UI components for React and Vue

Integrate React.js with Rails views and controllers, the asset pipeline, or webpacker.

Yoast SEO for WordPress

An open-source JavaScript library for world-class 3D globes and maps :earth_americas:

View the Physics. PhysicsHub is a free open-source project, perfect for contributions, that helps students study physics by visualizing formulas with interactive simulations.

Web-based XMPP/Jabber chat written in JavaScript

Node.js JavaScript runtime ✨🐢🚀✨

ToolJet is the open-source foundation of ToolJet AI - the enterprise app generation platform for building internal tools, dashboard, business applications, workflows and AI agents 🚀

A fancy self-hosted monitoring tool

Layer5, expect more from your infrastructure

sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments.

The React Framework

Automated auditing, performance metrics, and best practices for the web.

Sandstorm is a self-hostable web productivity suite. It's implemented as a security-hardened web app package manager. | Actively sponsored by our friends at TestMu AI

A node.js library for testing modern web applications

React-based framework with performance, scalability, and security built in.

A full-featured, open-source content management framework built with Node.js that empowers organizations by combining in-context editing and headless architecture in a full-stack JS environment.

⚡ Serverless Framework – Effortlessly build apps that auto-scale, incur zero costs when idle, and require minimal maintenance using AWS Lambda and other managed cloud services.

A BPMN 2.0 rendering toolkit and web modeler.

Concise, consistent, and legible badges in SVG and raster format

String validation

Lightweight, robust, elegant syntax highlighting.

The React Framework

An open-source, web-based viewer for zoomable images, implemented in pure JavaScript.

Find and fix problems in your JavaScript code.

Civic Tech & Data AI For Good project. Tracks prosecutor election messaging, mass incarceration indicators, and historical context. Utilizes Agentic AI for data scraping.

AlaSQL.js - JavaScript SQL database for browser and Node.js. Handles both traditional relational tables and nested JSON data (NoSQL). Export, store, and import data from localStorage, IndexedDB, or Excel.

The React documentation website