Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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date-fns
Modern JavaScript date utility library with 200+ pure, immutable functions
Axios
Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation
Zustand
A small, fast React state management library with a hook-based API and no boilerplate.
eslint-plugin-import
ESLint rules that validate ES module import/export syntax and catch broken paths before they hit your build.
Marked
A fast, low-level Markdown compiler that parses CommonMark and GFM into HTML in Node.js, browsers, or the CLI.
Sentry JavaScript (@sentry/browser)
The official Sentry SDK for capturing errors, performance traces, and session replays in browser JavaScript apps.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
@hookform/resolvers
Official React Hook Form adapters that plug 20+ schema-validation libraries — Zod, Yup, Joi, Valibot, ArkType and more — straight into useForm's resolver.
webpack
A static module bundler that builds a dependency graph of your project's modules and packages them into optimized browser bundles
Storybook
The industry-standard workshop for building, documenting, and testing UI components in isolation, across every major frontend framework.
node-fetch
A lightweight, spec-compliant implementation of the browser Fetch API for Node.js
highlight.js
Zero-dependency JavaScript syntax highlighter with automatic language detection for over 190 languages.
webpack-cli
The official command-line interface for webpack, adding build, watch, serve, and config-validation commands to any project.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Floating UI
React hooks and components for building accessible, perfectly positioned tooltips, popovers, and dropdowns.
css-loader
Resolves CSS @import and url() like JavaScript imports so webpack can bundle stylesheets and their assets.
eslint-plugin-jsx-a11y
Static ESLint rules that catch JSX accessibility issues before code ships.
SWC
Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel
style-loader
A webpack loader that injects bundled CSS into the DOM using style or link tags at runtime.
React Email
High-quality, unstyled React components for building responsive HTML emails
babel-loader
Babel loader for webpack (and Rspack) that transpiles modern JavaScript with filesystem caching and source map support.
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
sass-loader
Compiles Sass and SCSS files to CSS inside a webpack build, wiring in Dart Sass or Sass Embedded automatically.
proxy-agent
Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.
