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

90Health
Library Cargo

PyO3

Rust bindings for the Python interpreter, for writing native extensions or embedding Python in Rust.

16,182
Apache 2.0
Used by 11
86Health
Tool npm

js-beautify

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

8,999
MIT
Used by 11
66Health
Library npm

bowser

A small, fast browser, platform, and rendering-engine detector for browser and Node environments

5,753
MIT
Used by 11
86Health
Library PyPI

pyparsing

Build recursive-descent parsers in Python without a separate grammar file

2,493
MIT
Used by 11
78Health
Library npm

micromark

The smallest 100% CommonMark-compliant markdown parser, with GFM and MDX support

2,225
MIT
Used by 11
82Health
Library PyPI

pluggy

The minimalist, production-ready plugin and hook system that powers pytest, tox, and devpi

1,695
MIT
Used by 11
36Health
Library npm

bytes

Tiny utility for parsing and formatting byte strings like '1kb'

474
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
70Health
SDK PyPI

ollama-python

The official Python client for chatting, generating, and managing models on a local or cloud-hosted Ollama server.

10,557
MIT
Used by 10
76Health
Library PyPI

torchaudio

GPU-accelerated audio processing library built on PyTorch, with differentiable transforms, Kaldi-compatible features, and pretrained speech models.

2,948
Other
Used by 10
44Health
Library PyPI

backoff

Python function decorators that retry calls on exceptions or bad return values, with exponential, fibonacci, or constant backoff and jitter.

2,694
MIT
Used by 10
56Health
Library Cargo

tree-sitter-python

A fast, incremental Python grammar for the tree-sitter parsing library

568
MIT
Used by 10
80Health
SDK PyPI

modal-client

Deploy Python functions to serverless GPU and CPU cloud infrastructure with a single decorator.

519
Apache 2.0
Used by 10
58Health
Library PyPI

distro

Linux distribution detection library and CLI, replacing Python's removed platform.linux_distribution()

281
Apache 2.0
Used by 10
30Health
Library npm

Partial JSON

Parses incomplete JSON strings streamed token-by-token from an LLM into usable JavaScript values as they arrive.

244
MIT
Used by 10
92Health
Library PyPI

Polars

Blazingly fast multi-threaded DataFrame library built in Rust with Python, Node.js, and R bindings

39,872
MIT
Used by 9
94Health
SDK PyPI

Elasticsearch Python Client

The official Python client for querying, indexing, and managing an Elasticsearch cluster

4,388
Apache 2.0
Used by 9
72Health
Library PyPI

websocket-client

A low-level, dependency-free WebSocket client for Python supporting both synchronous and event-driven connections.

3,707
Apache 2.0
Used by 9
87Health
Library npm

html-react-parser

Converts HTML strings into React elements, working seamlessly on both server and client

2,429
MIT
Used by 9
74Health
Library PyPI

feedparser

Parses RSS, Atom, RDF, CDF, and JSON feeds into one normalized Python dictionary.

2,426
Other
Used by 9
93Health
SDK PyPI

pymilvus

The official Python SDK for Milvus, the open-source vector database for embedding-based similarity search.

1,411
Apache 2.0
Used by 9
89Health
Library Cargo

jsonschema

A high-performance JSON Schema validator for Rust with Python, Ruby, and WASM bindings

822
MIT
Used by 9
56Health
Library Cargo

tree-sitter-javascript

JavaScript and JSX grammar for the tree-sitter incremental parsing library

494
MIT
Used by 9
89Health
Framework PyPI

OpenAI Agents SDK

OpenAI's provider-agnostic Python framework for building multi-agent LLM workflows with tools, guardrails, and tracing.

29,733
MIT
Used by 8

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