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

Kind

google-auth

The foundational Python library for authenticating to Google Cloud and Google APIs with OAuth2, service accounts, and Application Default Credentials.

body-parser

Node.js body-parsing middleware that turns raw HTTP request bodies into ready-to-use req.body objects.

cron-parser

Parse, validate, and iterate cron expressions in Node.js with full timezone and DST support.

Gunicorn

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

OpenTelemetry Python SDK

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

cRonstrue

Turns cron expressions into human-readable descriptions, in 30+ languages.

fast-xml-parser

Pure-JS XML parser, builder, and validator with no C/C++ bindings and no callbacks

gray-matter

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

mypy

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

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

Flask

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

scikit-learn

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

Alembic

Database migrations tool for SQLAlchemy with autogenerate and transactional DDL

pydantic-settings

Type-safe application settings management for Python, built on Pydantic models.

Typer

Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.

asyncpg

A fast PostgreSQL database client library for Python built directly on asyncio, implementing the PostgreSQL binary wire protocol natively for high-throughput async applications.