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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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.
Autoprefixer
Parses your CSS and automatically adds vendor prefixes using real-world browser usage data from Can I Use.
@babel/core
The core JavaScript compiler that transforms next-generation syntax into code every browser and runtime can understand.
vite-tsconfig-paths
Resolves TypeScript's tsconfig.json path aliases inside Vite, so aliased imports work without redeclaring them in the Vite config.
@rollup/plugin-alias
Rollup plugin for defining and resolving import aliases, swapping brittle relative paths for clean, refactor-safe module names.
@swc/jest
A Jest transform that compiles TypeScript and JSX with the Rust-based SWC compiler instead of Babel.
tsconfig-paths
Resolves TypeScript path aliases from tsconfig.json at runtime so Node can load them like the compiler does.
postcss-import
A PostCSS plugin that inlines @import rules, merging split CSS files into one stylesheet before other plugins run.
fast-glob
A very fast and efficient glob library for Node.js
ignore
A pure JavaScript manager, filter, and parser for .gitignore-style rules, built exactly to the gitignore spec.
ts-morph
Navigate and manipulate TypeScript code with a friendlier compiler API wrapper
cssnano
A modular CSS minifier built on the PostCSS ecosystem, composing dozens of swappable optimization plugins into safe, lite, and advanced presets.
postcss-preset-env
Converts tomorrow's CSS syntax into code today's browsers understand by auto-selecting PostCSS polyfill plugins from your browserslist targets.
path-browserify
Node.js path module implementation for browser environments
jiti
A zero-dependency runtime that transpiles TypeScript and ESM on the fly so Node.js can require() or import them directly.
postcss-simple-vars
A PostCSS plugin that brings Sass-like $variables to CSS values, selectors, at-rules, and comments.
@rolldown/plugin-babel
Official Babel transform plugin for Rolldown and Vite, with per-file preset filtering.
regenerator-runtime
The runtime library that powers Babel-compiled ES6 generator and async/await functions in ES5 environments
napi-rs
Build precompiled Node.js add-ons in Rust via Node-API, no node-gyp required
install
A minimal CommonJS module loader that lets you install and synchronously require a tree of modules in any JavaScript environment.
pycparser
A complete, pure-Python parser for the C99 language, producing an inspectable AST with no external dependencies.
electron-devtools-installer
Installs Chrome DevTools extensions like Redux and React DevTools directly into Electron apps.
@svgr/core
The Node.js API that converts raw SVG markup into optimized, ready-to-use React components.
postcss-flexbugs-fixes
A PostCSS plugin that automatically fixes common cross-browser Flexbox layout bugs.
