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.

56,573
MIT
Used by 165
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
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
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
93Health
Framework npm

preact

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

38,868
MIT
Used by 19
89Health
Framework npm

Slate

Completely customizable framework for building rich text editors

31,748
MIT
Used by 16
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
65Health
Framework npm

Nextra

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

13,921
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.

59,226
Other
Used by 5
92Health
Framework npm

Plate

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

16,580
MIT
Used by 5
91Health
Framework PyPI

LlamaIndex

The leading data framework for building LLM applications over your own data.

52,160
MIT
Used by 3
92Health
Framework npm

CopilotKit

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

37,348
MIT
Used by 3
73Health
Framework npm

@refinedev/core

Headless React meta-framework for building CRUD-heavy admin panels, dashboards, and internal tools fast.

35,676
MIT
Used by 3
81Health
Framework npm

gatsby

A React-based framework that compiles content and data into blazing-fast static sites and hybrid-rendered web apps.

55,938
MIT
Used by 2
94Health
Framework npm

React Admin

TypeScript framework for building admin panels and B2B apps on any API

26,935
MIT
Used by 2
68Health
Framework npm

json-render

The Generative UI framework: AI builds real, reliable interfaces from prompts, constrained to components you define.

16,157
Apache 2.0
Used by 2
45Health
Framework npm

kea

Batteries-included state management for React, built on Redux with hooks, plugins, and automatic mount/unmount lifecycles.

1,991
MIT
Used by 2
92Health
Framework npm

Payload

The Next.js-native, TypeScript CMS and application framework with instant REST, GraphQL, and Local APIs.

44,738
MIT
Used by 1
94Health
Framework npm

Medusa

Open-source headless commerce platform and framework for Node.js and TypeScript.

36,302
MIT
Used by 1
92Health
Framework npm

tinacms

Git-backed headless CMS that gives React apps live, in-context Markdown editing and a generated GraphQL content API.

13,797
Apache 2.0

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers