memlab is a framework that analyzes memory and finds memory leaks in JavaScript applications.

Common utilities for ChromaDB AI embedding packages

checkbox ui component for react

Detects Gamestop Browser Wallet provider injection

a color parsing and manipulation lib served in roughly 2kB

User agent feature detection like Device Orientation, in App Browser Detection, etc

Node CLI or module to calculate folder size

Browser transport implementations for Model Context Protocol (MCP) - postMessage, Chrome extension messaging, and iframe communication for AI agents and LLMs

Make detecting user's OS less annoying

Parser adapter for parsing JSON documents into A2A v1 namespace.

SHA256 wrapper for browsers that prefers `window.crypto.subtle` but will fall back to a pure JS implementation in @aws-crypto/sha256-js to provide a consistent interface for SHA256.

Read `.xlsx` files in a web browser or in Node.js

💪 Try as hard as possible to detect the client's language tag ('locale') in node or the browser. Browserify and Webpack friendly!

Powerful and compliant CSS selector parser.

Javascript Library for Typesense

WebSQL Database API, implemented for Node using sqlite3

Detect the archive type of a Buffer/Uint8Array

Convert character encodings in pure javascript.

Simple and fast utilities to parse, serialize, and load SVG strings and elements. Optimized for both browser and Node.js environments.

css color parsing, manupulation and conversion