Maqetta Visual authoring of HTML5 user interfaces - in the browser! Maqetta is an open source project that provides WYSIWYG visual authoring of HTML5 user interfaces. The Maqetta application itself is authored in HTML, and therefore runs in the browser without requiring additional plugins or downloads. in Development > JavaScript, AJAX & Dojowith authoringdojoeditormodelingvisualwysiwygby 4 users