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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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.
webpack
A static module bundler that builds a dependency graph of your project's modules and packages them into optimized browser bundles
DOM Testing Library
Simple, framework-agnostic DOM query utilities that test your UI the way real users interact with it.
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
ioredis
A robust, full-featured Redis client for Node.js with built-in Cluster, Sentinel, and TypeScript support.
React Resizable Panels
Resizable, draggable panel group layouts for React with keyboard accessibility and SSR support built in
tslib
The runtime library that houses TypeScript's compiler helper functions so your emitted code stays small.
Mermaid
Generate flowcharts, sequence diagrams, and 20+ other diagram types from markdown-like text
cors
Node.js CORS middleware for Express and Connect that sets standards-compliant headers to control cross-origin browser access.
React Flow
A highly customizable React library for building node-based editors, diagrams, and interactive flow charts.
Chart.js
Simple, flexible JavaScript charting for designers and developers
highlight.js
Zero-dependency JavaScript syntax highlighter with automatic language detection for over 190 languages.
@monaco-editor/react
Drop the Monaco code editor into any React app without touching webpack, rollup, or bundler config files.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
diff
A battle-tested JavaScript library for computing and applying text diffs at the character, word, line, sentence, CSS, or JSON level.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Electron
Build cross-platform desktop apps with JavaScript, HTML, and CSS on Chromium and Node.js
Floating UI
React hooks and components for building accessible, perfectly positioned tooltips, popovers, and dropdowns.
MDX
The compiler that lets you write JSX directly inside Markdown documents
classnames
A tiny utility for conditionally joining CSS class names together.
