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.
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
Django
The high-level Python web framework that turns database models into secure, working web applications in record time.
pypdf
A pure-Python library for splitting, merging, cropping, transforming, and extracting content from PDF files.
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.
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.
Matplotlib
Python's foundational plotting library for static, animated, and interactive charts
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.
Starlette
A lightweight ASGI framework/toolkit for building async web services and apps in Python
