FusionCharts - Create interactive JavaScript charts for web, mobile and enterprise applications. FusionCharts Suite has 90+ chart types and 965 maps for visualising data. Google Hosted Libraries - A content distribution network for popular, open-source JavaScript libraries. cdnjs - An open source CDN for JavaScript and CSS sponsored by CloudFlare. Firefox Developer Tools - Examine, edit, debug, and profile JavaScript on the desktop and on mobile. Bower - A package manager for web developers. PhantomJS - Headless WebKit scriptable with a JavaScript API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas and SVG. Visual Event - Open source JavaScript bookmarklet which provides debugging information about events that have been attached to DOM elements. devtools-detect - Detect if DevTools is open in Chrome, Safari and Firefox. js-tools - Mailing list, discussion forums. Bacon.js - FRP (functional reactive programming) library for JavaScript. jsDerlivr - A free CDN for JavaScript and jQuery plugins.