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

91Health
Tool PyPI

Uvicorn

A lightning-fast ASGI server for Python, built on uvloop and httptools.

10,993
BSD 3
Used by 83
90Health
Tool PyPI

Ruff

An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.

49,811
MIT
Used by 46
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
83Health
Tool PyPI

mypy

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

20,651
MIT
Used by 30
89Health
Tool PyPI

Alembic

Database migrations tool for SQLAlchemy with autogenerate and transactional DDL

4,413
MIT
Used by 27
94Health
Tool Go

grpc-gateway

A protoc plugin that generates a reverse-proxy server, turning RESTful HTTP/JSON requests into gRPC calls from the same service definitions.

20,004
BSD 3
Used by 16
86Health
Tool npm

js-beautify

Reformats and re-indents JavaScript, HTML, and CSS into clean, readable code

8,999
MIT
Used by 11
51Health
Tool PyPI

MkDocs

A fast, simple static site generator for building project documentation from Markdown with a single YAML config file.

22,470
Other
Used by 10
83Health
Tool Go

goose

A database migration tool for Go, driven by SQL files or plain Go functions, with a CLI and an embeddable provider library.

11,507
MIT
Used by 8
92Health
Tool PyPI

isort

Automatically sorts and organizes Python import statements

6,953
MIT
Used by 8
69Health
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
46Health
Tool Go

Wire

Compile-time dependency injection for Go that generates plain, debuggable initialization code with zero runtime reflection.

14,397
Apache 2.0
Used by 7
79Health
Tool PyPI

Sphinx

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

8,035
Other
Used by 7
92Health
Tool Go

nats-server

High-performance, self-hostable messaging server for NATS.io, powering pub/sub, request/reply, and JetStream persistence across cloud and edge.

20,778
Apache 2.0
Used by 6
95Health
Tool Go

BuildKit

The daemon and CLI toolkit behind `docker build`, compiling Dockerfiles and other build definitions into portable, cacheable OCI images.

10,291
Apache 2.0
Used by 6
89Health
Tool PyPI

build

A simple, correct Python build frontend for producing PEP 517 source distributions and wheels.

857
MIT
Used by 6
97Health
Tool Go

TiDB

A distributed, MySQL-compatible SQL database built for horizontal scale, strong consistency, and hybrid transactional/analytical workloads.

40,595
Apache 2.0
Used by 5
90Health
Tool PyPI

IPython

A productive interactive Python shell with rich introspection, tab completion, and magic commands.

16,787
BSD 3
Used by 5
86Health
Tool PyPI

pip

The official package installer for Python, bundled with the interpreter

10,287
MIT
Used by 5
95Health
Tool PyPI

Pylint

A static code analyser for Python that catches bugs and enforces coding standards

5,726
GPL 2.0
Used by 5
86Health
Tool PyPI

Granian

A fast Rust HTTP server for Python that serves ASGI, WSGI, and RSGI applications

5,675
BSD 3
Used by 5
91Health
Tool PyPI

Poetry

Poetry is a dependency management and packaging tool for Python that resolves, locks, and installs project dependencies through a single pyproject.toml file.

34,306
MIT
Used by 4
67Health
Tool PyPI

pytest-order

Pytest plugin for running tests in a specific, controllable order

211
MIT
Used by 4
94Health
Tool Go

Docker Compose

The official CLI plugin for defining and running multi-container Docker applications from a single Compose file.

38,259
Apache 2.0
Used by 3

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