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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TanStack Query
Hooks-based async state management for fetching, caching, and syncing server data in React.
tsx
A drop-in replacement for the node CLI that runs TypeScript and ESM files instantly, powered by esbuild.
TanStack Table
Headless, type-safe tables and datagrids for React, Vue, Solid, and more.
Requests
The elegant, human-friendly HTTP library that made Python's most-used API for talking to the web.
AI SDK
Provider-agnostic TypeScript toolkit for building AI apps and agents with any LLM.
Pydantic
Data validation and settings management using Python type hints, backed by a Rust core.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
HTTPX
A next-generation HTTP client for Python with sync, async, and HTTP/2 support
Storybook
The industry-standard workshop for building, documenting, and testing UI components in isolation, across every major frontend framework.
TanStack Virtual (React)
Headless React hook for virtualizing massive lists, grids, and tables at 60FPS.
Uvicorn
A lightning-fast ASGI server for Python, built on uvloop and httptools.
NumPy
The fundamental N-dimensional array library powering Python's scientific computing stack.
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.