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

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
56Health
Library npm

bcrypt.js

A zero-dependency, pure JavaScript implementation of bcrypt for hashing and verifying passwords in Node.js and the browser.

3,797
BSD 3
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
85Health
Library PyPI

PyJWT

A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.

5,700
MIT
Used by 44
95Health
SDK Go

AWS SDK for Go v2

The official AWS SDK for Go — type-safe, modular clients for every AWS service.

3,649
Apache 2.0
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
89Health
Framework npm

Better Auth

The most comprehensive, framework-agnostic authentication and authorization framework for TypeScript.

29,933
MIT
Used by 37
63Health
Library npm

react-colorful

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

3,554
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
98Health
Library PyPI

google-auth

The foundational Python library for authenticating to Google Cloud and Google APIs with OAuth2, service accounts, and Application Default Credentials.

5,383
Apache 2.0
Used by 35

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