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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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.
fs-extra
Drop-in replacement for Node's fs module adding copy, remove, mkdirs, and JSON helpers with native promise support.
Storybook
The industry-standard workshop for building, documenting, and testing UI components in isolation, across every major frontend framework.
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.
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
React Resizable Panels
Resizable, draggable panel group layouts for React with keyboard accessibility and SSR support built in
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.
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.
Emotion
Performant, flexible CSS-in-JS styling for React with the css prop, theming, and SSR support
Fuse.js
Lightweight, zero-dependency fuzzy-search library for JavaScript and TypeScript, in the browser or on the server.
KaTeX
Fast, self-contained JavaScript library for print-quality LaTeX math rendering on the web.
JSZip
Create, read, and edit ZIP files directly in JavaScript, in the browser or Node.js.
