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

92Health
Framework npm

Playwright

Cross-browser end-to-end web testing and browser automation with a single API for Chromium, Firefox, and WebKit.

96,127
Apache 2.0
Used by 228
95Health
Framework npm

React Router

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

56,573
MIT
Used by 165
86Health
Framework npm

Express

The fast, unopinionated, minimalist web framework for Node.js

69,454
MIT
Used by 158
96Health
Framework npm

Next.js

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

142,310
MIT
Used by 154
97Health
Framework npm

Electron

Build cross-platform desktop apps with JavaScript, HTML, and CSS on Chromium and Node.js

123,052
MIT
Used by 68
94Health
Framework npm

TanStack Router

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

15,081
MIT
Used by 56
93Health
Framework npm

Docusaurus

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

66,246
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.

40,607
MIT
Used by 35
97Health
Framework npm

React Native

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

126,600
MIT
Used by 31
93Health
Framework npm

NestJS

A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.

76,663
MIT
Used by 27
83Health
Framework npm

Expo

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

52,237
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.

23,852
MIT
Used by 27
98Health
Framework npm

Bootstrap

The world's most popular front-end framework for building responsive, mobile-first sites

174,791
MIT
Used by 25
93Health
Framework npm

preact

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

38,868
MIT
Used by 19
98Health
Framework npm

@angular/core

The core runtime of Angular: components, dependency injection, change detection, and signals for building web, mobile, and desktop apps.

101,007
MIT
Used by 16
89Health
Framework npm

Slate

Completely customizable framework for building rich text editors

31,748
MIT
Used by 16
86Health
Framework npm

Solid.js

A declarative JavaScript library that compiles to real DOM nodes and updates them with fine-grained reactivity — no virtual DOM required.

36,035
MIT
Used by 13
91Health
Framework Go

Echo

A minimalist, high-performance Go web framework with a radix-tree router, built-in middleware chain, and first-class HTTP/2 support.

32,705
MIT
Used by 13
90Health
Framework Cargo

napi-rs

Build precompiled Node.js add-ons in Rust via Node-API, no node-gyp required

7,939
MIT
Used by 13
88Health
Framework npm

Mastra Core

The TypeScript framework for building AI agents, workflows, and RAG apps with unified access to 40+ LLM providers.

28,036
Apache 2.0
Used by 8
65Health
Framework npm

Nextra

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

13,921
MIT
Used by 8
85Health
Framework npm

Capacitor

Build native iOS, Android, and Progressive Web Apps from a single web codebase

16,662
MIT
Used by 7
91Health
Framework npm

Pulumi

Infrastructure as Code in your favorite programming language, powered by a shared multi-language deployment engine.

25,682
Apache 2.0
Used by 6
78Health
Framework npm

grammY

The modern TypeScript framework for building Telegram bots on Node.js and Deno

3,743
MIT
Used by 6

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