The FlatSiteBuilder is a very easy to use content management system and content creation tool running as a desktop application. You are able to build web content which you can host on github pages for free or any other web space provider.
Germany
EU
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Flextype Alternatives
Flextype is described as 'The freedom of a headless CMS with the full functionality of a traditional CMS' and is a CMS tool in the social & communications category. There are more than 10 alternatives to Flextype for a variety of platforms, including Self-Hosted, Web-based, Linux, Mac and Windows apps. The best Flextype alternative is Grav, which is both free and Open Source. Other great apps like Flextype are Automad, Bludit, FlatlyPage CMS and ClassicPress.
Alternatives list
Quanta is an open source, PHP-based Content Management System that doesn't use a database, thought for the development of next-generation web applications.
Italy