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

91Health
Library npm

react-dropzone

A lightweight React hook for building HTML5-compliant drag-and-drop file upload zones.

11,014
MIT
Used by 56
49Health
Library npm

prism-react-renderer

A lightweight, themeable Prism syntax highlighter for React and React Native, built on a render-props API.

1,993
MIT
Used by 55
62Health
Library npm

React CodeMirror

A fully-typed React component and hook for embedding the CodeMirror 6 code editor with themes and language extensions.

2,251
MIT
Used by 54
82Health
Library npm

RxJS

The standard library for composing asynchronous and event-based programs using observable sequences

31,698
Apache 2.0
Used by 53
51Health
Library npm

cookie-parser

Express middleware that parses HTTP Cookie headers into req.cookies, with support for signed and JSON-encoded cookie values.

2,030
MIT
Used by 52
90Health
Library npm

React Email

High-quality, unstyled React components for building responsive HTML emails

19,732
MIT
Used by 51
83Health
Library npm

Embla Carousel React

A lightweight, dependency-free React hook for building fluid, touch-precise carousels and sliders.

8,414
MIT
Used by 51
85Health
Library npm

Streamdown

A drop-in react-markdown replacement built for AI-powered streaming interfaces.

5,616
Apache 2.0
Used by 51
55Health
Library npm

Headless UI

Unstyled, fully accessible UI components for React and Vue, built for Tailwind CSS

28,742
MIT
Used by 49
48Health
Library npm

Vaul

An unstyled, physics-based drawer component for React, built on Radix UI's Dialog primitive.

8,608
MIT
Used by 49
71Health
Library npm

react-error-boundary

Reusable React error boundary component that catches rendering errors and shows a fallback UI.

7,986
MIT
Used by 48
87Health
Library npm

Base UI

Unstyled, accessible React components and low-level hooks for building your own design system.

10,897
MIT
Used by 46
77Health
Library npm

input-otp

Accessible, unstyled one-time password input component for React with full keyboard, paste, and password-manager support.

3,255
MIT
Used by 46
60Health
Library npm

p-limit

A tiny, battle-tested utility for running async functions with a strict concurrency limit.

2,925
MIT
Used by 45
87Health
Library npm

Multer

Streamlined multipart/form-data file upload handling for Express and Node.js APIs.

12,085
MIT
Used by 44
90Health
Library npm

Tabler Icons React

6000+ free MIT-licensed SVG icons as tree-shakable React components with customizable size, color, and stroke.

21,685
MIT
Used by 43
76Health
Library Cargo

async-trait

Type erasure for async fn in Rust traits, enabling async methods behind dyn dispatch.

2,196
Other
Used by 43
60Health
Library npm

react-select

The flexible, accessible Select control for React with multi-select, async, and creatable options.

28,027
MIT
Used by 42
88Health
Library npm

React Aria

Unstyled, accessible React hooks and components for building your own design system.

15,869
Apache 2.0
Used by 42
53Health
Library npm

React DnD

A set of React hooks and utilities for building complex drag-and-drop interfaces without coupling your components to the DOM.

21,627
MIT
Used by 41
95Health
Framework PyPI

aiohttp

Asynchronous HTTP client and server framework for Python's asyncio, covering both API calls and building web/WebSocket services.

16,548
Apache 2.0
Used by 40
63Health
Library npm

react-colorful

A tiny, dependency-free color picker component for React and Preact apps

3,554
MIT
Used by 37
82Health
Library npm

@hono/node-server

The official Node.js adapter that runs your Hono application on a native Node HTTP server using web-standard APIs.

676
MIT
Used by 37
51Health
Library npm

Tippy.js

The complete tooltip, popover, dropdown, and menu solution for the web.

12,243
MIT
Used by 36

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