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

58Health
Library PyPI

aiodns

A simple asynchronous DNS resolver for Python's asyncio built on pycares

592
MIT
Used by 1
81Health
SDK npm

rollbar.js

The official cross-platform JavaScript SDK for Rollbar, capturing browser, Node.js, and React Native errors with breadcrumbs and session replay.

587
MIT
Used by 1
64Health
Library PyPI

aiofile

Real asynchronous file operations for Python asyncio, backed by io_uring, libaio, and thread pools.

583
Apache 2.0
Used by 1
36Health
Library PyPI

chevron

A fast, spec-compliant Python implementation of the Mustache templating language.

556
MIT
Used by 1
40Health
Library PyPI

sgqlc

A simple, typed GraphQL client for Python that builds queries programmatically.

555
Other
Used by 1
41Health
Library PyPI

flatten-json

Flatten and unflatten deeply nested JSON in Python

554
MIT
Used by 1
48Health
Library Cargo

mdxjs-rs

A fast, memory-safe Rust library that compiles MDX documents into JavaScript.

540
MIT
Used by 1
82Health
Library PyPI

timezonefinder

Fast, fully offline timezone lookup for any WGS84 coordinate on earth

538
MIT
Used by 1
54Health
SDK PyPI

aiodocker

AsyncIO Python client for the Docker Engine HTTP API, built on aiohttp.

537
Apache 2.0
Used by 1
90Health
Library PyPI

graphql-core

A Python 3 port of the GraphQL.js reference implementation of GraphQL.

532
MIT
Used by 1
91Health
SDK PyPI

FalconPy

The official Python SDK for the CrowdStrike Falcon platform, wrapping every OAuth2 API operation in typed, testable service classes.

516
Other
Used by 1
54Health
Library PyPI

pytest-flask

A pytest plugin with ready-made fixtures for testing Flask applications end to end.

499
MIT
Used by 1
57Health
Library PyPI

srsly

Unified, cross-platform JSON, JSONL, MessagePack, Pickle, and YAML serialization for Python

488
MIT
Used by 1
43Health
Library npm

tld.js

Parses hostnames and URLs to reliably extract domains, subdomains, and public suffixes using Mozilla's public suffix list.

475
MIT
Used by 1
44Health
Library npm

autocompleter

A dependency-free, 1KB JavaScript/TypeScript autocomplete widget for building fast, accessible input suggestions.

474
MIT
Used by 1
44Health
Library PyPI

wasabi

A lightweight, zero-dependency console printing and formatting toolkit for Python

471
MIT
Used by 1
86Health
SDK PyPI

deepgram-python-sdk

Official Python SDK for Deepgram's speech-to-text, text-to-speech, and voice agent APIs, with sync, async, and WebSocket support.

466
MIT
Used by 1
45Health
Library PyPI

Python Xlib

A pure-Python implementation of the X11 protocol for talking to an X server.

465
LGPL-2.1
Used by 1
41Health
Library PyPI

cymem

A Cython memory pool for RAII-style, garbage-collector-tied memory management

462
MIT
Used by 1
46Health
Library npm

fast-png

A pure JavaScript PNG encoder and decoder supporting 16-bit depth, Adam7 interlacing, indexed color, and full APNG animation frames.

459
MIT
Used by 1
82Health
Tool PyPI

Sphinx-Gallery

A Sphinx extension that executes Python example scripts and builds a rendered HTML gallery from their output.

457
BSD 3
Used by 1
59Health
Library PyPI

whois

A Python library for querying and parsing WHOIS domain registration data across 100+ TLDs without a third-party API.

455
MIT
Used by 1
55Health
SDK PyPI

kubernetes_asyncio

Asyncio-based Python client library for the Kubernetes API, built on aiohttp.

437
Apache 2.0
Used by 1
47Health
Library npm

timeago-react

A tiny React component that renders live, auto-updating relative timestamps like "3 hours ago".

434
MIT
Used by 1

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