Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
Category
Sort:Used by Most Apps
compression
Node.js middleware that transparently gzip-, deflate-, or Brotli-compresses HTTP responses for Express and raw http servers.
OpenTelemetry Python SDK
The reference implementation of the OpenTelemetry API for Python - traces, metrics, and logs
Node-Redis
The official, high-performance TypeScript client for Redis in Node.js.
passport
Simple, unobtrusive authentication middleware for Node.js with 480+ pluggable strategies.
node-mongodb-native
The official MongoDB driver for Node.js: a typed, promise-based client for connecting to and querying MongoDB from JavaScript and TypeScript.
postgres
Postgres.js is a zero-dependency PostgreSQL client for Node.js, Deno, Bun, and Cloudflare Workers built on ES6 tagged template literals.
gray-matter
Fast, dependable front-matter parser for YAML, JSON, TOML, and CoffeeScript metadata blocks
prom-client
The de facto Prometheus client library for instrumenting Node.js applications with counters, gauges, histograms, and summaries.
cookie
Basic HTTP cookie parser and serializer for HTTP servers, with zero dependencies and full RFC 6265 support.
mocha
The classic, battle-tested JavaScript test framework for Node.js and the browser, built around flexible async testing and pluggable reporters.
mypy
Optional static type checker that catches Python bugs before you run your code
express-rate-limit
Basic IP rate-limiting middleware for Express to throttle repeated requests and protect public APIs and sensitive endpoints.
Inquirer.js
Interactive command-line prompts for Node.js — lists, checkboxes, confirms, and more with a single async API.
websockets
Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.
csv-parse
A flexible, dependency-free CSV parser for Node.js and the browser with stream, callback, and sync APIs.
Psycopg
The modern PostgreSQL adapter for Python, with native async and pipeline support
ignore
A pure JavaScript manager, filter, and parser for .gitignore-style rules, built exactly to the gitignore spec.
scikit-learn
Simple and efficient tools for machine learning and data analysis in Python.
@azure/identity
Microsoft Entra ID credential library that authenticates every Azure SDK client, from managed identity in production to CLI and browser login in development.
NestJS
A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.
pydantic-settings
Type-safe application settings management for Python, built on Pydantic models.
NextAuth.js
Open-source authentication for Next.js with OAuth, OIDC, email, and passkey sign-in.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
Prompts
Lightweight, beautiful and user-friendly interactive CLI prompts for Node.js.
