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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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.
dotenv
Loads environment variables from a .env file into process.env for Node.js apps.
date-fns
Modern JavaScript date utility library with 200+ pure, immutable functions
jsdom
A pure-JavaScript implementation of the WHATWG DOM and HTML standards for Node.js.
React Testing Library
Simple and complete React DOM testing utilities that encourage good testing practices.
Lodash
A modern JavaScript utility library delivering modularity, performance, and extras for arrays, objects, and functions.
Axios
Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation
jest-dom
Custom Jest matchers for asserting on the state of the DOM in your tests.
@babel/core
The core JavaScript compiler that transforms next-generation syntax into code every browser and runtime can understand.
DOMPurify
DOM-only, uber-tolerant XSS sanitizer for HTML, MathML, and SVG that runs in the browser and on the server.
Recharts
A composable charting library for React, built on D3 and SVG.
TanStack Table
Headless, type-safe tables and datagrids for React, Vue, Solid, and more.
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.
Requests
The elegant, human-friendly HTTP library that made Python's most-used API for talking to the web.
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.
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.
testify
The essential Go toolkit for assertions, mocks, and structured test suites.
Chalk
The most popular Node.js library for styling terminal string output with ANSI colors.
DOM Testing Library
Simple, framework-agnostic DOM query utilities that test your UI the way real users interact with it.
HTTPX
A next-generation HTTP client for Python with sync, async, and HTTP/2 support
