Statamic

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Bootstrap CMS

Kirby is a flat file content management system written in PHP. Kirby adapts to any project and can be used by developers, designers, creators and clients to create websites for businesses and personal use.

Grav is a modern free and open source flat-file content management system. With Grav, you can publish content and build sites in a fast, flexible and simple manner with the file-based web platform. Grav requires zero installation and is just an zip archive that can be extracted to start using the CMS. Grave also comes with a powerful package management system that allow you to extend the feature set of Grav CMS. With the package management system you can install and upgrade themes and plugins written specifically for Grav. The software is written in PHP and released fully free and open-source under the MIT License.

Flextype is super fast headless content management system with an elegant architecture and built-in smart cache.

Kotti is a high-level, Pythonic web application framework. It includes an extensible Content Management System called the Kotti CMS, offering all the features you would expect from a modern CMS. Kotti is built on top of a number of best-of-breed software components, notably Pyramid, SQLAlchemy, and Twitter Bootstrap.

TourCMS is a web based reservation system for tour operators and travel agencies, TourCMS - Tour operator reservation system and website CMS

Magnolia CMS is the superior headless content management solution for a reliable DX platform. With Magnolia you can unify your content and create data-driven, omnichannel experience.