Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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PyYAML
A full-featured YAML parser and emitter for Python, with C-accelerated bindings
React Flow
A highly customizable React library for building node-based editors, diagrams, and interactive flow charts.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
Chart.js
Simple, flexible JavaScript charting for designers and developers
highlight.js
Zero-dependency JavaScript syntax highlighter with automatic language detection for over 190 languages.
CodeMirror State
Immutable document, selection, and transaction data structures for the CodeMirror code editor
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
@monaco-editor/react
Drop the Monaco code editor into any React app without touching webpack, rollup, or bundler config files.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
diff
A battle-tested JavaScript library for computing and applying text diffs at the character, word, line, sentence, CSS, or JSON level.
Electron
Build cross-platform desktop apps with JavaScript, HTML, and CSS on Chromium and Node.js
@codemirror/language
Language support infrastructure for the CodeMirror 6 editor: parsing, indentation, code folding, bracket matching, and syntax highlighting.
Fuse.js
Lightweight, zero-dependency fuzzy-search library for JavaScript and TypeScript, in the browser or on the server.
KaTeX
Fast, self-contained JavaScript library for print-quality LaTeX math rendering on the web.
JSZip
Create, read, and edit ZIP files directly in JavaScript, in the browser or Node.js.
pandas
The Python DataFrame library for fast, flexible, and expressive data analysis and manipulation.
PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
Faker
Generate massive amounts of realistic fake data for testing, seeding, and mocking in JavaScript and TypeScript.
Pillow
The friendly PIL fork that adds image processing capabilities to Python
boto3
The official AWS SDK for Python — call every Amazon Web Services API from your code.
OpenAI Python SDK
The official Python library for the OpenAI REST API, generated from OpenAI's OpenAPI spec with typed sync and async clients.
xterm.js
A fast, self-contained TypeScript library for embedding fully-featured terminals in the browser.
TanStack Router
A fully type-safe React router with built-in data loading, caching, and URL search-param validation.
SWC
Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel
