1. Zotonic is the open source, high speed, real-time web framework and content management system.

  2. Online blogging software - free for basic users!

  3. Visual web design app.

  4. Create websites quickly and customize them with ease.

  5. Vacation rental website builder, with online booking and payment processing.

  6. Beautiful Wikis for Teams. Get started today, free forever!

  7. Foswiki is the free and open source enterprise collaboration platform.

  8. A better way to organize team documents

  9. TWiki is leading open source enterprise wiki and Web 2.

  10. Plain text outliner with side-by-side views.

  11. An open source, modern and powerful wiki app built on Node.js, Git, and Markdown.

  12. MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.