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 Testing Library
Simple and complete React DOM testing utilities that encourage good testing practices.
DOM Testing Library
Simple, framework-agnostic DOM query utilities that test your UI the way real users interact with it.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
proxy-agent
Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.
rich
A Python library for rendering rich text, tables, progress bars, and syntax-highlighted code in the terminal.
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
Redux
A predictable, framework-agnostic state container for JavaScript applications.
http-proxy-middleware
The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.
forge
A native, pure-JavaScript implementation of TLS and PKI cryptography for building crypto-based Node.js and browser apps.
Celery
Distributed task queue for running asynchronous jobs, scheduled work, and complex workflows across Python applications at scale.
got
Human-friendly and powerful HTTP request library for Node.js, with retries, streams, pagination, and RFC 7234 caching built in.
lo
A Lodash-style Go library built on Go 1.18+ generics for working with slices, maps, channels, and functions.
Orama
A dependency-free full-text, vector, and hybrid search engine that runs entirely in JavaScript.
fastest-levenshtein
The fastest JavaScript/TypeScript implementation of Levenshtein edit distance
Remeda
A TypeScript-first utility library with data-first and data-last function variants, lazy pipe evaluation, and fully typed transformations.
Markdown
The reference Python implementation of John Gruber's Markdown, with a pluggable extension system for converting text to HTML.
immutable-js
Persistent immutable List, Map, Set, and Stack collections for JavaScript with structural sharing.
superagent
A small, progressive HTTP request library for Node.js and browsers with a single fluent, chainable API on both platforms.
ureq
A simple, safe, blocking HTTP client for Rust with minimal dependencies.
follow-redirects
A drop-in replacement for Node's http and https modules that transparently follows redirects with zero runtime dependencies.
certmagic
Automatic HTTPS for Go programs — the production-grade ACME client library that powers Caddy, obtaining and renewing TLS certificates with zero manual cert management.
OAuthLib
Generic, spec-compliant OAuth1, OAuth2, and OpenID Connect implementation for Python
turf
The complete, modular geospatial analysis engine for JavaScript and TypeScript, bundling every Turf.js module under one install.
