Tool to detect browser types

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

A module to check if a polygon self-intersects using a sweepline algorithm

Detect agentic coding environments and AI assistant tools

Finger pose classifier for hand landmarks detected by TensorFlow.js handpose model

Detect and invoke AI CLI tools (Claude, Gemini, Codex, Copilot, Cursor, Crush, Amp, Kimi, Qwen, OpenCode, Droid) installed on the system

Domain name parser based on the Public Suffix List

Detect and extract the static part of a glob string

Auto-resizing Input Component for React

Node.js Buffer API, for the browser

Determine what package manager should be used

A node library and command line tool to test the integrity of your internal an external hyperlinks

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

BugSnag error reporter for JavaScript web workers and service workers

Detect trojan source attacks that employ unicode bidi attacks to inject malicious code

A collection of utilities for working with GPUs, especially for WebGPU.

Node's domain module for the web browser. This is merely an evented try...catch with the same API as node, nothing more.

Polygons, Ellipses, Circles, Boxes, Lines, Points. Ray-Casting, offsets, rotation, scaling, padding, groups.

Screenshots with JavaScript

Detect browser extensions like ad blockers and Dark Reader