Webydo - A code-free web design platform that empowers professional designers and agencies to create & manage pixel-perfect, responsive sites.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Webflow - Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.
Textpattern - Textpattern is an elegant content management system that is free, open source software.
Google Sites - Access Google Sites with a free Google account (for personal use) or G Suite account (for business use).
TYPO3 - TYPO3.com - Infos, SLAs, Extended Support Versions and more