Similar to MooTools

Emscripten

Enyo (software)

Ext JS

Gleam (programming language)

GNU LibreJS

Google Apps Script

List of JavaScript engines

JavaScript library

JScript

JSDoc

JSFuck

JSHint

JSLint

JSON

JSONP

JSX (JavaScript)

KJS

MEAN (solution stack)

MochiKit

Nashorn (JavaScript engine)

OpenJS Foundation