The Aptana IDE is a free, open-source, cross-platform, JavaScript-focused development environment for building Ajax applications. It features code assist on JavaScript, HTML, and CSS languages, FTP/SFTP support and a JavaScript debugger to troubleshoot your code.
a free MicroContent WikiWikiWeb created by JeremyRuston and a busy Community of independent developers. It's written in HTML, CSS and JavaScript to run on any modern browser without needing any ServerSide logic.
a lightweight structured data publishing framework that lets you create web pages with support for sorting, filtering, and rich visualizations by writing only HTML and optionally some CSS and Javascript code.
"Yet Another Multicolumn Layout" (kurz YAML) ist ein (X)HTML/CSS Framework zur Erstellung moderner und flexibler Layouts auf Grundlage von float-Umgebungen.