Sites like changesets.dev

A community initiative on e18e, the JavaScript ecosystem performance project, covering dependency cleanup, faster packages and modern module replacements

An open-source React and Next.js onboarding library for building interactive product tours, with documentation, FAQ and demo

Sindre Sorhus's website presents his Mac, iOS and open-source apps, such as the Aiko transcription tool and Dato menu bar calendar

React-Uploady is a lightweight React library and documentation site for building browser file-upload features

The Rollup JavaScript module bundler's official website, with documentation, FAQs, an online REPL and browser build guides

Mocha, a JavaScript test framework for Node.js and browsers, with its project documentation and API reference

Babel, an open-source JavaScript compiler project with documentation, a browser REPL and a team page, converting modern JavaScript to older-compatible code

Personal website of Hiroki Osame, a JavaScript/TypeScript engineer whose blog posts and open-source developer tools cover web development infrastructure

Node.js, an open-source cross-platform JavaScript runtime for building servers, web apps, command line tools and scripts

A dynamically typed open-source scripting language for the Java Virtual Machine, with its own installer, version manager and training events

fast-check is a property-based testing library for JavaScript and TypeScript, with documentation and blog posts by maintainer Nicolas Dubien

Blitz.js, a fullstack toolkit and conventions framework for building Next.js applications, with documentation and showcase pages

JHipster, an open source platform for generating full stack Java applications with Spring Boot and Angular or React

MikroORM documentation for its TypeScript object-relational mapper and its database driver and tooling packages

The Oxc project's website describing a collection of open-source JavaScript tools written in Rust, including a compiler, with its team and sponsorship pages

Personal homepage and résumé of Isaac Z. Schlueter, a software engineer known for creating npm and leading Node.js work

Biome, an open-source toolchain for web projects that formats, lints, and checks JavaScript, TypeScript, and related code

WebdriverIO API reference documentation for the WebdriverIO browser and mobile test automation framework's commands and protocol bindings

Graphile, a software project building GraphQL API tools such as PostGraphile and Graphile Starter, with a news page

A JavaScript testing framework named Jest, documented on its official site, with French and English pages and community help

A weekly blog on Xcode, iOS and Swift development by Antoine van der Lee, called SwiftLee

Lucia, a deprecated TypeScript authentication library and its documentation site, with an auth book and replacement code

Vite, a frontend build tool and documentation site for modern web application development, with team and event pages

stdlib is an open-source JavaScript and Node.js standard library of numerical and scientific computing packages, documented on its website

Blog by web standards leader Lea Verou on CSS, web design, icons and open source developer tools

node-postgres is a collection of Node.js modules for connecting to and querying PostgreSQL databases, with API documentation and guides

NAPI-RS is a Rust framework for building pre-compiled Node.js addons, with WebAssembly support and a changelog of releases

A React component library company offering free Material UI components and MUI X advanced data tools for building web interfaces

The unified collective's documentation and tooling site for parsing, transforming and serializing content through syntax trees, with guides, recipes and package listings

Latent.Space is an AI engineering newsletter, podcast and community by Shawn "swyx" Wang covering agents, models and infrastructure

PeerJS, an open source JavaScript library and documentation site for simplifying WebRTC peer-to-peer data and media connections

Faker, a JavaScript library documentation site for generating realistic fake test data, with API reference, guide and modules

pdfme, a free open-source JavaScript library for generating, filling and viewing PDFs from JSON templates, with a visual designer

UnoCSS is an on-demand atomic CSS engine documentation site, with guides, config references and presets by Anthony Fu

Prettier, an opinionated code formatter for JavaScript, CSS, Markdown and other languages, with editor and CI integrations

Rust-based open source platform of fast developer tools such as a JavaScript/TypeScript compiler, documented by its project team

Mock Service Worker, an API mocking library for browser and Node.js JavaScript, with documentation and guides for intercepting network requests

Fastify, a Node.js web framework project with documentation, community resources, benchmarks and a plugin ecosystem

A component library and code distribution platform for building design systems with Park UI, Ark UI and Panda CSS, plus a Figma kit