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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validator.js
A dependency-free library of 100+ string validators and sanitizers for Node.js and the browser.
Typer
Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.
asyncpg
A fast PostgreSQL database client library for Python built directly on asyncio, implementing the PostgreSQL binary wire protocol natively for high-throughput async applications.
Alembic
Database migrations tool for SQLAlchemy with autogenerate and transactional DDL
Bootstrap
The world's most popular front-end framework for building responsive, mobile-first sites
sentry-sdk
The official Python SDK for Sentry error tracking, performance monitoring, and tracing.
i18next-http-backend
An i18next backend plugin that loads translation resources over HTTP using fetch or XMLHttpRequest, for Node.js, browsers, and Deno.
idna
Internationalized Domain Names for Python — IDNA 2008 and UTS #46 encoding and decoding
express-session
Simple, pluggable session middleware for Express that signs session IDs into a cookie and delegates data storage to any compatible store.
openid-client
Certified OAuth 2 and OpenID Connect client for every modern JavaScript runtime.
html2canvas
Render live DOM into canvas screenshots entirely in the browser, no server required
async
Higher-order async utility functions for callback, async/await, and promise-based control flow in Node.js and the browser.
svgo
A Node.js library and command-line tool that optimizes SVG files by removing redundant markup through a configurable plugin pipeline.
React Native Reanimated
Run smooth, gesture-driven animations directly on the UI thread in React Native.
pypdf
A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.
tenacity
A general-purpose Python retrying library that adds configurable retry behavior to almost anything
React Native Gesture Handler
Declarative, native-driven touch and gesture handling for React Native, recognized on the UI thread.
Charset Normalizer
A pure-Python universal charset detector that turns text of unknown encoding into clean Unicode.
SciPy
Fundamental algorithms for scientific computing, optimization, and statistics in Python.
attrs
Python classes without boilerplate — generate init, repr, equality, and more from declarative field definitions.
LangChain
The most widely adopted Python framework for building LLM-powered agents and applications
loguru
A drop-in replacement for Python's standard logging module that makes logging enjoyable, with almost no setup required.
Matplotlib
Python's foundational plotting library for static, animated, and interactive charts
Starlette
A lightweight ASGI framework/toolkit for building async web services and apps in Python
