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

87Health
Tool PyPI

isort

Automatically sorts and organizes Python import statements

6,951
MIT
Used by 8
94Health
Library PyPI

Werkzeug

The comprehensive WSGI utility library that powers Flask and countless Python web apps.

6,881
BSD 3
Used by 8
84Health
Library PyPI

gevent

Coroutine-based concurrency for Python, built on greenlets and a fast libev/libuv event loop.

6,448
MIT
Used by 8
84Health
Library PyPI

json_repair

Repair malformed JSON from LLMs, APIs, logs, and user input — a drop-in fallback for json.loads().

5,096
MIT
Used by 8
79Health
Library PyPI

python-socketio

Python implementation of the Socket.IO realtime protocol for both servers and clients.

4,369
MIT
Used by 8
77Health
Library PyPI

Markdown

The reference Python implementation of John Gruber's Markdown, with a pluggable extension system for converting text to HTML.

4,246
BSD 3
Used by 8
89Health
Library PyPI

msgspec

A fast, zero-cost serialization and validation library for JSON, MessagePack, YAML, and TOML in Python.

4,105
BSD 3
Used by 8
58Health
Tool PyPI

flake8

The CLI linter that wraps PyFlakes, pycodestyle, and McCabe complexity checks into a single Python style and error checker.

3,823
MIT
Used by 8
49Health
Library PyPI

html2text

Converts HTML into clean, readable Markdown-formatted plain text, as both a Python library and a CLI tool.

2,170
GPL 3.0
Used by 8
81Health
SDK Composer

Sentry for Laravel

Official Sentry SDK for Laravel with automatic error, log, and performance tracing capture

1,350
MIT
Used by 8
88Health
Library PyPI

PyMdown Extensions

A rich extension pack for Python-Markdown adding tabs, superfences, emoji, and more

1,130
MIT
Used by 8
36Health
SDK PyPI

aioboto3

An async wrapper around boto3's high-level AWS resources, backed by aiobotocore

1,004
Apache 2.0
Used by 8
90Health
Library Cargo

jsonschema

A high-performance JSON Schema validator for Rust with Python, Ruby, and WASM bindings

814
MIT
Used by 8
70Health
Library PyPI

argon2-cffi

Secure, high-level password hashing for Python using Argon2

731
MIT
Used by 8
57Health
Library Cargo

tree-sitter-python

A fast, incremental Python grammar for the tree-sitter parsing library

566
MIT
Used by 8
69Health
Tool npm

@vitejs/plugin-basic-ssl

A Vite plugin that generates a self-signed certificate so your dev and preview servers can run over HTTPS with zero setup.

516
MIT
Used by 8
86Health
Library Composer

Monolog

The PSR-3 logging library that sends PHP logs to files, sockets, databases, and dozens of web services

21,405
MIT
Used by 7
95Health
Library PyPI

Faker

A Python library that generates realistic fake data for testing, seeding, and anonymizing datasets across 70+ locales.

19,402
MIT
Used by 7
55Health
Library npm

superagent

A small, progressive HTTP request library for Node.js and browsers with a single fluent, chainable API on both platforms.

16,637
MIT
Used by 7
94Health
Library Composer

Laravel Excel

Supercharged Excel and CSV exports and imports for Laravel applications

12,704
MIT
Used by 7
78Health
Tool PyPI

Sphinx

A documentation generator that turns reStructuredText or Markdown sources into polished HTML, PDF, EPUB, and more.

8,014
Other
Used by 7
90Health
Library Composer

Predis

A flexible, pure-PHP Redis and Valkey client with clustering and replication support

7,779
MIT
Used by 7
83Health
SDK PyPI

PyGithub

A typed Python library for the GitHub REST API, wrapping repositories, issues, pull requests, and organizations as lazy-loading objects.

7,772
Other
Used by 7
84Health
Library PyPI

opencv-python

Pre-built, pip-installable OpenCV bindings that give Python programs full computer vision and image-processing capabilities without compiling from source.

5,388
MIT
Used by 7

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