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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date-fns
Modern JavaScript date utility library with 200+ pure, immutable functions
Axios
Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation
Zustand
A small, fast React state management library with a hook-based API and no boilerplate.
eslint-plugin-import
ESLint rules that validate ES module import/export syntax and catch broken paths before they hit your build.
Marked
A fast, low-level Markdown compiler that parses CommonMark and GFM into HTML in Node.js, browsers, or the CLI.
Sentry JavaScript (@sentry/browser)
The official Sentry SDK for capturing errors, performance traces, and session replays in browser JavaScript apps.
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.
@hookform/resolvers
Official React Hook Form adapters that plug 20+ schema-validation libraries — Zod, Yup, Joi, Valibot, ArkType and more — straight into useForm's resolver.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
node-fetch
A lightweight, spec-compliant implementation of the browser Fetch API for Node.js
highlight.js
Zero-dependency JavaScript syntax highlighter with automatic language detection for over 190 languages.
Floating UI
React hooks and components for building accessible, perfectly positioned tooltips, popovers, and dropdowns.
eslint-plugin-jsx-a11y
Static ESLint rules that catch JSX accessibility issues before code ships.
React Email
High-quality, unstyled React components for building responsive HTML emails
Winston
A battle-tested Node.js logging library with pluggable transports, custom formats, and multiple log levels.
rich
A Python library for rendering rich text, tables, progress bars, and syntax-highlighted code in the terminal.
Ruff
An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.
Prisma Client
Auto-generated, type-safe database client for Node.js and TypeScript.
Cheerio
The fast, flexible library for parsing and manipulating HTML and XML with a familiar jQuery-style API.
PyJWT
A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.
aiohttp
Asynchronous HTTP client and server framework for Python's asyncio, covering both API calls and building web/WebSocket services.
Transformers
State-of-the-art pretrained models for text, vision, audio, and multimodal inference and training.
