Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.

JavaScript Performance Monitor

A damn-sexy, open source real-time dashboard builder for IOT and other web mashups. A free open-source alternative to Geckoboard.

Exploits locked/password protected computers over USB, drops persistent WebSocket-based backdoor, exposes internal router, and siphons cookies using Raspberry Pi Zero & Node.js.

A modular, extendable, and easy-to-use physics engine for javascript

A javascript library for handling currencies

Add Clippy or his friends to any website for instant nostalgia.

JavaScript 2D physics library

A dialogue engine for creating chat bots

A JavaScript library for common financial calculations

Clear Eyes. Full Hearts. Can’t Lose.

Feedback form with screenshot

8Bit.js Audio Library - Write music using 8bit oscillation sounds.

DynamicsWebApi is a Microsoft Dataverse Web API helper library for JavaScript & TypeScript

A filter to convert your objects to an array that can be filtered and sorted easily

Add-on for the wonderful incremental browser game: http:https://kittensgame.com/web/

xkcd: 1190: Time: The Game

Chrome extension to show "X-Clacks-Overhead" http response headers if present.

Kittens Game Scripts

Basic AES [en/de]cryption using CryptoJS for javascript, and Rijndael Managed for C#.