Grav
Modern, easy and powerful Flat-File CMS
...Grav has a powerful API and sophisticated Package Manager to make it super flexible. Grav is Open Source, and all the code is available on GitHub.com. The Grav admin plugin provides a simple and intuitive interface to make configuration and content creation easy and enjoyable. Packed to the gills with amazing features and tools, coupled with heaps of detailed documentation, Grav will make you look like a hero developer! Use your favorite Markdown editor to create your content online or offline. The built-in Package Manager lets you to find, install, and easily update extensions and themes for Grav. ...