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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Playwright
Cross-browser end-to-end web testing and browser automation with a single API for Chromium, Firefox, and WebKit.
React Router
A multi-strategy router for React, from a lightweight library to a full SSR framework.
Express
The fast, unopinionated, minimalist web framework for Node.js
Next.js
The React framework for production: file-based routing, server rendering, and Rust-powered builds.
posthog-js
The official browser SDK for PostHog — autocapture, session replay, feature flags, and surveys in one drop-in script.
AWS SDK for JavaScript (S3 Client)
The official modular AWS SDK v3 client for Amazon S3, with TypeScript-first APIs and streaming support.
Sentry JavaScript (@sentry/browser)
The official Sentry SDK for capturing errors, performance traces, and session replays in browser JavaScript apps.
pytest
The Python testing framework that makes writing small tests easy and scales to complex functional test suites.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
Electron
Build cross-platform desktop apps with JavaScript, HTML, and CSS on Chromium and Node.js
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.
TanStack Router
A fully type-safe React router with built-in data loading, caching, and URL search-param validation.
aiohttp
Asynchronous HTTP client and server framework for Python's asyncio, covering both API calls and building web/WebSocket services.
redis-py
The official Python client for Redis, with sync, asyncio, cluster, and Sentinel support.
Transformers
State-of-the-art pretrained models for text, vision, audio, and multimodal inference and training.
@clickhouse/client
The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.
python-sdk
The official Python SDK for building Model Context Protocol servers and clients that expose tools, resources, and prompts to any LLM host.
Docusaurus
React-based static site generator for building fast, maintainable documentation websites.
tRPC Server
Build end-to-end typesafe APIs in TypeScript with no schemas, no code generation, and zero runtime bloat.
React Native
Build native iOS and Android apps from a single React codebase using the components and patterns you already know.
Flask
A lightweight WSGI web framework for Python that scales from a single file to complex applications.
supabase-js
The official isomorphic JavaScript SDK for Supabase — database, auth, realtime, storage, and edge functions in one client.
@azure/identity
Microsoft Entra ID credential library that authenticates every Azure SDK client, from managed identity in production to CLI and browser login in development.
