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
Category
Sort:Used by Most Apps
postcss
A CSS transformation engine that parses styles into an AST, letting JS plugins lint, prefix, and rewrite CSS — the foundation beneath Autoprefixer, Tailwind, and 200+ other tools.
typescript-eslint
The official meta-package bundling the TypeScript ESLint parser, plugin, and rule presets behind a single typed config() helper.
Marked
A fast, low-level Markdown compiler that parses CommonMark and GFM into HTML in Node.js, browsers, or the CLI.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
js-yaml
A fast, complete YAML 1.2 and 1.1 parser and serializer for JavaScript.
yaml
A definitive TypeScript parser and stringifier for YAML, supporting 1.1 and 1.2 with comment and CST access.
Commander.js
The complete, battle-tested framework for building Node.js command-line interfaces.
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.
webpack-cli
The official command-line interface for webpack, adding build, watch, serve, and config-validation commands to any project.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
css-loader
Resolves CSS @import and url() like JavaScript imports so webpack can bundle stylesheets and their assets.
url
A WHATWG-standard-compliant URL parser and manipulation library for Rust.
PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
Clap
The most widely used command-line argument parser for Rust, with both derive and builder APIs.
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.
markdown-it
A fast, pluggable CommonMark-compliant Markdown parser and renderer for JavaScript, safe by default.
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.
Cheerio
The fast, flexible library for parsing and manipulating HTML and XML with a familiar jQuery-style API.
