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

82Health
Library PyPI

Requests

The elegant, human-friendly HTTP library that made Python's most-used API for talking to the web.

54,300
Apache 2.0
Used by 110
93Health
Library PyPI

Pydantic

Data validation and settings management using Python type hints, backed by a Rust core.

28,772
MIT
Used by 102
54Health
Library PyPI

HTTPX

A next-generation HTTP client for Python with sync, async, and HTTP/2 support

15,478
BSD 3
Used by 85
41Health
Library npm

@codemirror/view

The DOM view layer for the CodeMirror 6 code editor, handling rendering, input, and editor chrome.

178
MIT
Used by 81
96Health
Library PyPI

NumPy

The fundamental N-dimensional array library powering Python's scientific computing stack.

32,741
BSD 3
Used by 80
55Health
Library PyPI

PyYAML

A full-featured YAML parser and emitter for Python, with C-accelerated bindings

2,942
MIT
Used by 79
32Health
Library npm

CodeMirror State

Immutable document, selection, and transaction data structures for the CodeMirror code editor

83
MIT
Used by 73
65Health
Library PyPI

python-dotenv

Load environment variables from a .env file into Python's os.environ, the standard way to keep 12-factor config out of your code

8,876
BSD 3
Used by 72
53Health
Library npm

@monaco-editor/react

Drop the Monaco code editor into any React app without touching webpack, rollup, or bundler config files.

4,741
MIT
Used by 72
92Health
Library npm

undici

A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies

7,695
MIT
Used by 70
26Health
Library npm

@codemirror/language

Language support infrastructure for the CodeMirror 6 editor: parsing, indentation, code folding, bracket matching, and syntax highlighting.

32
MIT
Used by 67
98Health
Library PyPI

pandas

The Python DataFrame library for fast, flexible, and expressive data analysis and manipulation.

49,732
BSD 3
Used by 61
92Health
Library PyPI

Pillow

The friendly PIL fork that adds image processing capabilities to Python

13,812
Other
Used by 60
26Health
Library npm

@codemirror/commands

A collection of editing, selection, deletion, indentation, and undo-history commands with default keymaps for the CodeMirror 6 code editor.

39
MIT
Used by 55
62Health
Library npm

React CodeMirror

A fully-typed React component and hook for embedding the CodeMirror 6 code editor with themes and language extensions.

2,251
MIT
Used by 54
34Health
Library npm

@codemirror/autocomplete

Autocompletion engine for the CodeMirror 6 code editor, with fuzzy matching, snippets, and bracket closing.

83
MIT
Used by 54
25Health
Library npm

@codemirror/lang-json

JSON language support for the CodeMirror 6 editor: parsing, folding, indentation, and a built-in parse-error linter.

33
MIT
Used by 54
42Health
Library npm

qrcode

A zero-dependency-on-canvas QR code and 2D barcode generator for Node.js and the browser.

8,174
MIT
Used by 53
84Health
Library PyPI

cryptography

The standard cryptographic library for Python, pairing safe high-level recipes with low-level primitives backed by Rust and OpenSSL.

7,765
Other
Used by 53
88Health
Library PyPI

Click

A composable Python toolkit for building command line interfaces with minimal boilerplate.

17,664
BSD 3
Used by 50
93Health
Library PyPI

urllib3

A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.

4,058
MIT
Used by 48
53Health
Library PyPI

python-dateutil

Powerful extensions to Python's datetime module for parsing, deltas, recurrence, and timezones.

2,634
Other
Used by 48
68Health
Library npm

proxy-agent

Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.

1,161
MIT
Used by 47
33Health
Library npm

lang-javascript

JavaScript, TypeScript, and JSX language support for the CodeMirror 6 code editor.

78
MIT
Used by 47

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