Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
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eslint-plugin-jsx-a11y
Static ESLint rules that catch JSX accessibility issues before code ships.
React Icons
SVG icon components for React, bundling 40+ popular icon packs behind one consistent import syntax.
PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
Faker
Generate massive amounts of realistic fake data for testing, seeding, and mocking in JavaScript and TypeScript.
React Syntax Highlighter
A React component for syntax-highlighting code blocks using highlight.js or Prism ASTs, with JavaScript-based styles and no external stylesheet required.
xterm.js
A fast, self-contained TypeScript library for embedding fully-featured terminals in the browser.
TanStack Router
A fully type-safe React router with built-in data loading, caching, and URL search-param validation.
SWC
Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel
react-dropzone
A lightweight React hook for building HTML5-compliant drag-and-drop file upload zones.
prism-react-renderer
A lightweight, themeable Prism syntax highlighter for React and React Native, built on a render-props API.
React CodeMirror
A fully-typed React component and hook for embedding the CodeMirror 6 code editor with themes and language extensions.
RxJS
The standard library for composing asynchronous and event-based programs using observable sequences
markdown-it
A fast, pluggable CommonMark-compliant Markdown parser and renderer for JavaScript, safe by default.
cookie-parser
Express middleware that parses HTTP Cookie headers into req.cookies, with support for signed and JSON-encoded cookie values.
React Email
High-quality, unstyled React components for building responsive HTML emails
Embla Carousel React
A lightweight, dependency-free React hook for building fluid, touch-precise carousels and sliders.
bcrypt.js
A zero-dependency, pure JavaScript implementation of bcrypt for hashing and verifying passwords in Node.js and the browser.
core-js
Modular standard library and polyfills for JavaScript, from ECMAScript features to proposals and web standards.
Headless UI
Unstyled, fully accessible UI components for React and Vue, built for Tailwind CSS
qs
A battle-tested querystring parser and serializer for Node.js with nested object support and built-in security limits.
Vaul
An unstyled, physics-based drawer component for React, built on Radix UI's Dialog primitive.
remark
A plugin-powered markdown processor that parses, transforms, and serializes markdown on top of unified.
react-error-boundary
Reusable React error boundary component that catches rendering errors and shows a fallback UI.
Base UI
Unstyled, accessible React components and low-level hooks for building your own design system.
