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

50Health
Library npm

React Syntax Highlighter

A React component for syntax-highlighting code blocks using highlight.js or Prism ASTs, with JavaScript-based styles and no external stylesheet required.

4,674
MIT
Used by 59
97Health
SDK npm

Google Cloud Storage

Node.js client library for Google Cloud Storage — upload, download, and manage buckets and objects programmatically.

3,201
Apache 2.0
Used by 59
79Health
Library npm

Drizzle ORM

A lightweight, zero-dependency TypeScript ORM with full SQL-like query flexibility

35,907
Apache 2.0
Used by 57
89Health
Library npm

xterm.js

A fast, self-contained TypeScript library for embedding fully-featured terminals in the browser.

21,228
MIT
Used by 57
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
90Health
Tool npm

SWC

Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel

34,208
Apache 2.0
Used by 56
91Health
Library npm

react-dropzone

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

11,012
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.

1,995
MIT
Used by 55
84Health
Library PyPI

cryptography

The standard cryptographic library for Python, pairing safe high-level recipes with low-level primitives backed by Rust and OpenSSL.

7,786
Other
Used by 54
75Health
Library npm

React CodeMirror

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

2,253
MIT
Used by 54
81Health
Library npm

RxJS

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

31,704
Apache 2.0
Used by 53
78Health
Library npm

markdown-it

A fast, pluggable CommonMark-compliant Markdown parser and renderer for JavaScript, safe by default.

21,945
MIT
Used by 52
50Health
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

19,788
MIT
Used by 51
82Health
Library npm

Embla Carousel React

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

8,429
MIT
Used by 51
58Health
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
91Health
Library npm

core-js

Modular standard library and polyfills for JavaScript, from ECMAScript features to proposals and web standards.

25,536
MIT
Used by 50
88Health
Library PyPI

Click

A composable Python toolkit for building command line interfaces with minimal boilerplate.

17,770
BSD 3
Used by 50
55Health
Library npm

Headless UI

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

28,758
MIT
Used by 49
74Health
Library npm

qs

A battle-tested querystring parser and serializer for Node.js with nested object support and built-in security limits.

8,943
BSD 3
Used by 49
48Health
Library npm

Vaul

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

8,626
MIT
Used by 49
71Health
Library npm

remark

A plugin-powered markdown processor that parses, transforms, and serializes markdown on top of unified.

9,008
MIT
Used by 48
76Health
Library npm

react-error-boundary

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

7,993
MIT
Used by 48
93Health
Library PyPI

urllib3

A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.

4,064
MIT
Used by 48

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