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

66Health
Library Go

color

Colorized terminal output for Go with ANSI escape codes, 24-bit RGB, and built-in Windows support.

8,002
MIT
Used by 29
48Health
Library Go

go-cmp

A safer, more powerful alternative to reflect.DeepEqual for comparing Go values in tests.

4,678
BSD 3
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
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
52Health
Library Go

godotenv

A Go port of Ruby's dotenv that loads environment variables from .env files into your process, with zero third-party dependencies.

10,643
MIT
Used by 27
91Health
Library Go

compress

A Go compression toolkit with a pure-Go Zstandard codec, S2 (a faster Snappy), and assembly-accelerated drop-in replacements for gzip, zip, zlib, and lzw.

5,650
BSD 3
Used by 27
89Health
Tool PyPI

Alembic

Database migrations tool for SQLAlchemy with autogenerate and transactional DDL

4,413
MIT
Used by 27
89Health
Library PyPI

pydantic-settings

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

1,462
MIT
Used by 27
89Health
Framework PyPI

Typer

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

20,033
MIT
Used by 26
83Health
Library PyPI

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.

8,094
Apache 2.0
Used by 26
96Health
SDK PyPI

sentry-sdk

The official Python SDK for Sentry error tracking, performance monitoring, and tracing.

2,208
MIT
Used by 25
80Health
Library PyPI

idna

Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding

295
BSD 3
Used by 25
87Health
Framework PyPI

Django

The high-level Python web framework that turns database models into secure, working web applications in record time.

91,218
BSD 3
Used by 24
94Health
Library PyPI

pypdf

A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.

10,232
BSD 3
Used by 24
95Health
SDK Go

go-github

A comprehensive Go client library for the GitHub REST API, covering everything from repos and issues to Actions, Apps, and enterprise admin endpoints.

11,309
BSD 3
Used by 23
74Health
Library PyPI

tenacity

A general-purpose Python retrying library that adds configurable retry behavior to almost anything

8,798
Apache 2.0
Used by 23
81Health
Library PyPI

Charset Normalizer

A pure-Python universal charset detector that turns text of unknown encoding into clean Unicode.

796
MIT
Used by 23
77Health
Framework Go

Gin

A high-performance HTTP web framework for Go, built on a zero-allocation radix-tree router with an Express.js-style API.

89,268
MIT
Used by 22
97Health
Library PyPI

Matplotlib

Python's foundational plotting library for static, animated, and interactive charts

23,294
Other
Used by 22
81Health
Library Go

chi

A lightweight, idiomatic Go HTTP router built entirely on net/http, for composing middleware and mounting REST APIs without a framework.

22,891
MIT
Used by 22
98Health
Library PyPI

SciPy

Fundamental algorithms for scientific computing, optimization, and statistics in Python.

15,046
BSD 3
Used by 22
92Health
Library Go

gopsutil

A Go library that ports Python's psutil, giving programs a pure-Go way to read CPU, memory, disk, network, host, sensor, and process statistics across every major OS.

11,929
BSD 3
Used by 22
88Health
Library Go

go-sqlite3

A self-contained CGO driver that brings SQLite3 to Go's standard database/sql interface.

9,242
MIT
Used by 22

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