Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

96Health
SDK npm

google-api-nodejs-client

Google's officially supported Node.js client library for calling hundreds of Google APIs with built-in OAuth 2.0, API key, and service-account auth.

12,256
Apache 2.0
Used by 33
88Health
Tool PyPI

Gunicorn

A fast, lightweight pre-fork WSGI and ASGI HTTP server for running Python web apps in production on UNIX.

10,686
MIT
Used by 33
69Health
Library npm

compression

Node.js middleware that transparently gzip-, deflate-, or Brotli-compresses HTTP responses for Express and raw http servers.

2,805
MIT
Used by 33
93Health
Library PyPI

OpenTelemetry Python SDK

The reference implementation of the OpenTelemetry API for Python - traces, metrics, and logs

2,649
Apache 2.0
Used by 33
94Health
SDK npm

Node-Redis

The official, high-performance TypeScript client for Redis in Node.js.

17,586
MIT
Used by 32
43Health
Library npm

passport

Simple, unobtrusive authentication middleware for Node.js with 480+ pluggable strategies.

23,529
MIT
Used by 31
92Health
Library Composer

Guzzle

An extensible PHP HTTP client for sending requests and integrating with web services

23,452
MIT
Used by 31
93Health
Library npm

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.

10,178
Apache 2.0
Used by 31
64Health
Library npm

postgres

Postgres.js is a zero-dependency PostgreSQL client for Node.js, Deno, Bun, and Cloudflare Workers built on ES6 tagged template literals.

8,733
Other
Used by 31
38Health
Library npm

gray-matter

Fast, dependable front-matter parser for YAML, JSON, TOML, and CoffeeScript metadata blocks

4,491
MIT
Used by 31
87Health
Library npm

prom-client

The de facto Prometheus client library for instrumenting Node.js applications with counters, gauges, histograms, and summaries.

3,492
Apache 2.0
Used by 31
54Health
Library npm

cookie

Basic HTTP cookie parser and serializer for HTTP servers, with zero dependencies and full RFC 6265 support.

1,535
MIT
Used by 31
94Health
Tool npm

mocha

The classic, battle-tested JavaScript test framework for Node.js and the browser, built around flexible async testing and pluggable reporters.

22,896
MIT
Used by 30
83Health
Tool PyPI

mypy

Optional static type checker that catches Python bugs before you run your code

20,651
MIT
Used by 30
90Health
Library PyPI

websockets

Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.

5,719
BSD 3
Used by 30
81Health
Library npm

express-rate-limit

Basic IP rate-limiting middleware for Express to throttle repeated requests and protect public APIs and sensitive endpoints.

3,305
MIT
Used by 30
77Health
Library npm

csv-parse

A flexible, dependency-free CSV parser for Node.js and the browser with stream, callback, and sync APIs.

4,287
MIT
Used by 29
81Health
Library PyPI

Psycopg

The modern PostgreSQL adapter for Python, with native async and pipeline support

2,504
Other
Used by 29
77Health
Library npm

ignore

A pure JavaScript manager, filter, and parser for .gitignore-style rules, built exactly to the gitignore spec.

502
MIT
Used by 29
81Health
Framework PyPI

Flask

A lightweight WSGI web framework for Python that scales from a single file to complex applications.

74,802
BSD 3
Used by 28
94Health
Library PyPI

scikit-learn

Simple and efficient tools for machine learning and data analysis in Python.

67,403
BSD 3
Used by 28
97Health
SDK npm

@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.

2,296
MIT
Used by 28
92Health
Framework npm

NestJS

A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.

76,743
MIT
Used by 27
89Health
Tool PyPI

Alembic

Database migrations tool for SQLAlchemy with autogenerate and transactional DDL

4,413
MIT
Used by 27

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