Directory

Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

All Packages

90Health
Framework npm

tRPC Server

Build end-to-end typesafe APIs in TypeScript with no schemas, no code generation, and zero runtime bloat.

40,666
MIT
Used by 35
53Health
Library npm

@svgr/core

The Node.js API that converts raw SVG markup into optimized, ready-to-use React components.

11,061
MIT
Used by 34
58Health
Tool npm

Create React App

Zero-configuration CLI that bootstraps a React single-page app in one command

103,249
MIT
Used by 33
96Health
Library npm

Material UI

A comprehensive React component library implementing Google's Material Design, battle-tested and production-ready out of the box.

99,100
MIT
Used by 33
88Health
Tool PyPI

Gunicorn

A fast, lightweight pre-fork WSGI and ASGI HTTP server for running Python web apps in production on UNIX.

10,686
MIT
Used by 33
93Health
Library PyPI

OpenTelemetry Python SDK

The reference implementation of the OpenTelemetry API for Python - traces, metrics, and logs

2,649
Apache 2.0
Used by 33
97Health
Framework npm

React Native

Build native iOS and Android apps from a single React codebase using the components and patterns you already know.

126,751
MIT
Used by 31
89Health
Library npm

styled-components

Write actual CSS in your React components and let styled-components scope, inject, and dedupe it at runtime.

41,103
MIT
Used by 30
83Health
Tool PyPI

mypy

Optional static type checker that catches Python bugs before you run your code

20,651
MIT
Used by 30
90Health
Library PyPI

websockets

Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.

5,719
BSD 3
Used by 30
81Health
Library PyPI

Psycopg

The modern PostgreSQL adapter for Python, with native async and pipeline support

2,504
Other
Used by 29
81Health
Framework PyPI

Flask

A lightweight WSGI web framework for Python that scales from a single file to complex applications.

74,802
BSD 3
Used by 28
94Health
Library PyPI

scikit-learn

Simple and efficient tools for machine learning and data analysis in Python.

67,403
BSD 3
Used by 28
92Health
Library npm

Redux Toolkit

The official, opinionated, batteries-included toolset for efficient Redux state management

11,226
MIT
Used by 28
78Health
Library npm

react-native-safe-area-context

A flexible way to handle safe area insets in React Native, with hooks and components that also work on Android and web.

2,760
MIT
Used by 28
50Health
Library npm

react-textarea-autosize

A drop-in <textarea> replacement for React that automatically grows and shrinks to fit its content.

2,410
MIT
Used by 28
88Health
Framework npm

Expo

Open-source framework for building universal native apps with React that run on Android, iOS, and the web.

52,467
MIT
Used by 27
92Health
Framework npm

Lexical

An extensible, framework-agnostic text editor framework for building reliable, accessible rich-text experiences on the web.

23,901
MIT
Used by 27
90Health
Library npm

react-grid-layout

A responsive, draggable, and resizable grid layout system for React with breakpoints and zero jQuery.

22,436
MIT
Used by 27
79Health
Library npm

Jotai

Primitive and flexible atom-based state management for React that scales from a useState replacement to enterprise apps.

21,282
MIT
Used by 27
61Health
Library npm

usehooks-ts

A tree-shakable collection of 30+ ready-to-use React hooks, written in TypeScript.

7,861
MIT
Used by 27
89Health
Tool PyPI

Alembic

Database migrations tool for SQLAlchemy with autogenerate and transactional DDL

4,413
MIT
Used by 27
67Health
Library npm

qrcode.react

A React component for generating QR codes as SVG or Canvas, with logo embedding and full styling control.

4,286
Other
Used by 27
89Health
Library PyPI

pydantic-settings

Type-safe application settings management for Python, built on Pydantic models.

1,462
MIT
Used by 27

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