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
Tailwind CSS
A utility-first CSS framework for rapidly building custom user interfaces without leaving your markup.
prettier
An opinionated code formatter that enforces consistent style across every language your project speaks.
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.
tailwind-merge
Merge Tailwind CSS classes without style conflicts
date-fns
Modern JavaScript date utility library with 200+ pure, immutable functions
Autoprefixer
Parses your CSS and automatically adds vendor prefixes using real-world browser usage data from Can I Use.
Axios
Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation
class-variance-authority
A tiny TypeScript utility for building type-safe, variant-driven className APIs on top of clsx.
esbuild
An extremely fast JavaScript and CSS bundler and minifier written in Go.
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.
Sass
The reference Dart implementation of Sass, the mature CSS preprocessor that compiles SCSS and indented syntax to standards-compliant CSS.
js-yaml
A fast, complete YAML 1.2 and 1.1 parser and serializer for JavaScript.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
tailwindcss-animate
Tailwind CSS plugin for enter and exit animations using utility classes
yaml
A definitive TypeScript parser and stringifier for YAML, supporting 1.1 and 1.2 with comment and CST access.
tw-animate-css
A pure-CSS, Tailwind CSS v4 compatible replacement for tailwindcss-animate.
Commander.js
The complete, battle-tested framework for building Node.js command-line interfaces.
@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.
Fontsource Inter
Self-host the Inter typeface with a single npm install and zero third-party font requests.
node-fetch
A lightweight, spec-compliant implementation of the browser Fetch API for Node.js
