WordItOut - WordItOut is the word cloud generator that gives you control with many custom settings.
D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
WordCram - WordCram lets you generate word clouds in Processing. Simple, flexible, open-source. https://t.co/cf7HzbFD
Chart.js - Easy, object oriented client side graphs for designers and developers.
WordClouds.com - A free online word cloud generator and tag cloud creator. Paste text, upload a document or open an URL to automatically generate a word- or tag cloud. Customize your cloud with shapes, themes, colors and fonts.
Google Charts - Interactive charts for browsers and mobile devices.