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
Kind1
Category
Sort:Used by Most Apps
React
The declarative, component-based JavaScript library for building fast, interactive user interfaces on the web and in native apps.
React DOM
React's official renderer for the DOM and server — createRoot, hydrateRoot, and streaming SSR in one package.
lucide-react
1,700+ tree-shakeable, customizable SVG icon components for React applications
React Testing Library
Simple and complete React DOM testing utilities that encourage good testing practices.
TanStack Query
Hooks-based async state management for fetching, caching, and syncing server data in React.
Radix UI
Unstyled, accessible React UI primitives for building your own design system.
react-markdown
Safely render Markdown as React elements, no dangerouslySetInnerHTML required
Motion
A hybrid JavaScript and React animation library built for 120fps gestures, springs, and layout transitions.
cmdk
Fast, unstyled command menu and combobox primitives for React.
React Hook Form
Performant, flexible React forms built on hooks with minimal re-renders and built-in validation.
Recharts
A composable charting library for React, built on D3 and SVG.
Zustand
A small, fast React state management library with a hook-based API and no boilerplate.
TanStack Table
Headless, type-safe tables and datagrids for React, Vue, Solid, and more.
Sonner
An opinionated, animated toast notification component for React with a tiny imperative API.
user-event
Simulates the full sequence of real browser events so Testing Library tests behave the way an actual user does.
dnd-kit
A lightweight, extensible React library for building accessible drag-and-drop interfaces.
AI SDK
Provider-agnostic TypeScript toolkit for building AI apps and agents with any LLM.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
react-i18next
React bindings for the i18next internationalization ecosystem, built on hooks and a translation-aware Trans component.
next-themes
Perfect dark mode for React and Next.js apps in two lines of code, with zero flash on load.
react-day-picker
A lightweight, fully customizable date picker component for React applications.
Tiptap Core
Headless, framework-agnostic rich text editor toolkit built on ProseMirror
TanStack Virtual (React)
Headless React hook for virtualizing massive lists, grids, and tables at 60FPS.
React Resizable Panels
Resizable, draggable panel group layouts for React with keyboard accessibility and SSR support built in
