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

97Health
Library PyPI

Matplotlib

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

23,294
Other
Used by 22
61Health
Library Go

gjson

Fast, dependency-light JSON value extraction for Go using dot-notation paths.

15,557
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
80Health
Library PyPI

attrs

Python classes without boilerplate — generate init, repr, equality, and more from declarative field definitions.

5,846
MIT
Used by 22
83Health
Library npm

otplib

TypeScript-first TOTP and HOTP library with a pluggable crypto/base32 architecture for Node, Bun, Deno, and browsers.

2,290
MIT
Used by 22
92Health
Framework PyPI

LangChain

The most widely adopted Python framework for building LLM-powered agents and applications

147,170
MIT
Used by 21
71Health
Library PyPI

loguru

A drop-in replacement for Python's standard logging module that makes logging enjoyable, with almost no setup required.

24,134
MIT
Used by 21
94Health
Framework PyPI

Starlette

A lightweight ASGI framework/toolkit for building async web services and apps in Python

12,639
BSD 3
Used by 21
64Health
Library npm

path-to-regexp

Turn path strings like /user/:id into regular expressions for matching, building, and parsing URLs.

8,610
MIT
Used by 21
46Health
Library npm

jsonrepair

Repair invalid or broken JSON documents — missing quotes, trailing commas, truncation, and more

2,408
Other
Used by 21
89Health
Library PyPI

filelock

A platform-independent file lock for Python that supports the with-statement.

978
MIT
Used by 21
82Health
Library npm

http-proxy-middleware

The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.

11,127
MIT
Used by 20
90Health
SDK PyPI

docker-py

Official Python library for the Docker Engine API — manage containers, images, networks, and Swarm clusters from your own code.

7,214
Apache 2.0
Used by 20
64Health
Library npm

slugify

Slugify a string with accurate Unicode transliteration for URLs, filenames, and IDs.

2,704
MIT
Used by 20
45Health
Library PyPI

markupsafe

Escapes untrusted strings for safe use in HTML and XML markup, preventing injection attacks in templated output.

697
BSD 3
Used by 20
68Health
Library PyPI

orjson

A fast, correct, Rust-backed JSON library for Python with native dataclass, datetime, and numpy support

8,234
Apache 2.0
Used by 19
47Health
Library npm

node-xml2js

XML-to-JavaScript-object parser and builder for Node.js

4,959
MIT
Used by 19
71Health
SDK npm

dockerode

A Node.js client for the Docker Engine Remote API, covering containers, images, networks, and volumes with streams intact.

4,946
Apache 2.0
Used by 19
68Health
Library npm

globby

User-friendly glob matching for Node.js, built on fast-glob with negation, directory expansion, and gitignore support.

2,649
MIT
Used by 19
93Health
Tool npm

nest-cli

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

2,199
MIT
Used by 19
41Health
Library npm

cli-table3

Pretty unicode tables for the command line, drop-in API-compatible with the original cli-table

635
MIT
Used by 19
47Health
Library PyPI

tomli

A lil' TOML parser for Python — fast, spec-compliant, and dependency-free.

572
MIT
Used by 19
92Health
Framework PyPI

LangGraph

A low-level orchestration framework for building stateful, multi-actor LLM agents as graphs

42,375
MIT
Used by 18
74Health
Library npm

morgan

Battle-tested HTTP request logger middleware for Node.js and Express.

8,204
MIT
Used by 18

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