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

95Health
Framework npm

React Router

A multi-strategy router for React, from a lightweight library to a full SSR framework.

56,590
MIT
Used by 167
96Health
Framework npm

Next.js

The React framework for production: file-based routing, server rendering, and Rust-powered builds.

142,803
MIT
Used by 154
62Health
Framework npm

Commander.js

The complete, battle-tested framework for building Node.js command-line interfaces.

28,412
MIT
Used by 94
91Health
Framework PyPI

FastAPI

A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.

102,676
MIT
Used by 78
94Health
Framework npm

TanStack Router

A fully type-safe React router with built-in data loading, caching, and URL search-param validation.

15,136
MIT
Used by 57
75Health
Framework npm

yargs

The modern, pirate-themed command-line argument parser and command framework for Node.js

11,504
MIT
Used by 42
92Health
Framework npm

Docusaurus

React-based static site generator for building fast, maintainable documentation websites.

66,349
MIT
Used by 36
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
92Health
Framework Composer

PHPUnit

The de facto standard, programmer-oriented unit testing framework for PHP.

20,057
BSD 3
Used by 34
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
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
91Health
Framework npm

Fastify

A fast and low-overhead web framework for Node.js, built around schema-based validation and a plugin architecture

37,205
MIT
Used by 25
98Health
Framework Composer

Laravel

The expressive, elegant PHP framework for building modern web applications

34,931
MIT
Used by 21
93Health
Framework npm

preact

Fast, 3kB React-compatible Virtual DOM library with the same modern component API.

38,892
MIT
Used by 19
92Health
Framework Go

urfave/cli

A declarative, dependency-free Go package for building fast, friendly command-line tools.

24,260
MIT
Used by 17
89Health
Framework npm

Slate

Completely customizable framework for building rich text editors

31,754
MIT
Used by 16
62Health
Framework npm

Nextra

Next.js-powered static site generator for docs, blogs, and content sites

13,928
MIT
Used by 8
87Health
Framework Composer

Symfony Console

The PHP framework component for building beautiful, testable command-line applications

9,811
MIT
Used by 8
87Health
Framework npm

oclif Core

The Node.js framework that powers Salesforce CLI and Heroku CLI, providing flag parsing, help generation, and a plugin system for building CLIs.

317
MIT
Used by 8
92Health
Framework npm

Remotion

A React framework for creating videos programmatically with code, real browser rendering, and server-side or cloud-scale export.

60,780
Other
Used by 7
92Health
Framework npm

Plate

A React rich-text editor framework built on Slate, with a plugin system, AI features, and shadcn/ui components.

16,620
MIT
Used by 5
60Health
Framework Composer

nwidart/laravel-modules

Split large Laravel applications into self-contained, independently generated modules — each with its own routes, controllers, views, and migrations.

6,214
MIT
Used by 4
92Health
Framework npm

CopilotKit

React hooks and providers for building AI copilots with shared state, generative UI, and human-in-the-loop workflows.

37,567
MIT
Used by 3

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