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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eslint-plugin-react
React-specific linting rules for ESLint that catch JSX bugs, enforce Hooks conventions, and keep prop usage consistent.
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.
ws
A simple, blazing-fast, thoroughly tested WebSocket client and server library for Node.js.
user-event
Simulates the full sequence of real browser events so Testing Library tests behave the way an actual user does.
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.
i18next
The internationalization framework for JavaScript, with zero runtime dependencies and a pluggable ecosystem for every environment.
sharp
High-performance Node.js image processing powered by libvips, built for fast resizing and format conversion.
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.
js-yaml
A fast, complete YAML 1.2 and 1.1 parser and serializer for JavaScript.
react-i18next
React bindings for the i18next internationalization ecosystem, built on hooks and a translation-aware Trans component.
yaml
A definitive TypeScript parser and stringifier for YAML, supporting 1.1 and 1.2 with comment and CST access.
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.
Commander.js
The complete, battle-tested framework for building Node.js command-line interfaces.
OpenTelemetry JavaScript (@opentelemetry/api)
Vendor-neutral tracing, metrics, and context API that libraries and apps instrument once, so any OpenTelemetry-compatible backend can consume it.
Storybook
The industry-standard workshop for building, documenting, and testing UI components in isolation, across every major frontend framework.
OpenAI
The official Node.js/TypeScript client for the OpenAI API, auto-generated from OpenAI's own OpenAPI spec.
fs-extra
Drop-in replacement for Node's fs module adding copy, remove, mkdirs, and JSON helpers with native promise support.
TanStack Virtual (React)
Headless React hook for virtualizing massive lists, grids, and tables at 60FPS.
Tiptap Core
Headless, framework-agnostic rich text editor toolkit built on ProseMirror
