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.

10,963
BSD 3
Used by 81
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.

49,630
MIT
Used by 46
90Health
Tool PyPI

Gunicorn

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

10,669
MIT
Used by 33
65Health
Tool npm

openapi-typescript

Generate type-safe TypeScript types directly from your OpenAPI 3.0 and 3.1 schemas.

8,366
MIT
Used by 33
95Health
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
84Health
Tool PyPI

mypy

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

20,640
MIT
Used by 30
89Health
Tool PyPI

Alembic

Database migrations tool for SQLAlchemy with autogenerate and transactional DDL

4,393
MIT
Used by 26
84Health
Tool npm

svgo

A Node.js library and command-line tool that optimizes SVG files by removing redundant markup through a configurable plugin pipeline.

22,669
MIT
Used by 23
92Health
Tool npm

GraphQL Code Generator

A plugin-based CLI that generates typed code from a GraphQL schema and operations

11,263
MIT
Used by 21
94Health
Tool npm

nest-cli

Scaffolds, builds, and serves NestJS applications through schematics-driven code generation and pluggable compiler backends.

2,197
MIT
Used by 19
85Health
Tool npm

openapi-ts

OpenAPI-to-TypeScript code generator producing production-grade SDKs, Zod schemas, and TanStack Query hooks.

5,406
MIT
Used by 14
90Health
Tool npm

js-beautify

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

8,995
MIT
Used by 11
56Health
Tool npm

jest-junit

A Jest reporter that converts test results into JUnit-compatible XML for CI dashboards and test-analytics tools.

502
Apache 2.0
Used by 11
49Health
Tool PyPI

MkDocs

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

22,435
Other
Used by 10
87Health
Tool PyPI

isort

Automatically sorts and organizes Python import statements

6,951
MIT
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
90Health
Tool npm

verdaccio

A lightweight, zero-config-required private npm registry with built-in caching and proxying of public registries.

17,881
MIT
Used by 7
46Health
Tool Go

Wire

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

14,399
Apache 2.0
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
89Health
Tool PyPI

build

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

856
MIT
Used by 6
92Health
Tool PyPI

IPython

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

16,781
BSD 3
Used by 5
98Health
Tool npm

npm

The default command-line package manager for Node.js and the JavaScript ecosystem

10,114
Used by 5
95Health
Tool PyPI

Pylint

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

5,723
GPL 2.0
Used by 5
88Health
Tool PyPI

Granian

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

5,639
BSD 3
Used by 5

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