Halo is an open-source CMS and site builder with themes, plugins, an editor, backups, REST APIs, and optional AI extensions for content and knowledge sites.

39.6k stars10.3k forksGPL-3.0last commit Actively maintained
PHP-based open-source content management system and framework providing a flexible API, custom fields, templates and an admin UI for building and managing custom websites. Modular and extensible, with multi-language support and role-based access control.
Halo is an open-source CMS and site builder with themes, plugins, an editor, backups, REST APIs, and optional AI extensions for content and knowledge sites.

39.6k stars10.3k forksGPL-3.0last commit Actively maintained
Open-source flat-file CMS for PHP that uses Markdown, Twig templates and YAML configs with a package manager for fast, flexible sites.

15.7k stars1.4k forksMITlast commit Actively maintained
Umbraco CMS is an open-source ASP.NET Core content management system with an editor-friendly backoffice, extensible architecture, and scalable deployment options.

5.2k stars2.9k forksMITlast commit Actively maintained
Winter CMS is a Laravel-based, self-hosted open-source CMS with a user-friendly backend and extensible plugin/theme architecture for websites and web apps.

1.5k stars245 forksMITlast commit Actively maintained
MODX Revolution is an open source PHP CMS and content management framework for building highly customized websites and digital experiences with full control over markup and templates.

1.4k stars524 forksGPL-2.0last commit Actively maintained
Textpattern CMS is a lightweight, extensible PHP CMS for building blogs and websites with a tag-based templating system, plugins, and a streamlined admin interface.

881 stars110 forksGPL-2.0last commit Actively maintained
Open-source CMS for teams with in-context editing, granular permissions, and built-in collaboration.

851 stars483 forksMITlast commit Actively maintained
REDAXO is a lightweight, modular PHP CMS offering block/module-based content editing, a media pool, multilingual support, and an extensible AddOn system.

354 stars117 forkslast commit Actively maintained
Open-source PHP and MySQL CMS focused on developer control, template-driven sites, modular content types, and an intuitive admin/editor experience.

223 stars56 forkslast commit Actively maintained
Noosfero is a web platform for building community portals and social networks, combining CMS features with profiles, groups, and collaborative publishing.
Activity unknown
SPIP is a free, multilingual CMS focused on collaborative publishing, editorial workflows, and flexible templating for websites, magazines, and organizational portals.

Activity unknown
Drupal is a flexible, extensible CMS and web framework for building content-rich websites, portals, and digital experiences with strong permissions and structured content.

Activity unknown
Neos is a PHP-based content application platform (CMS) focused on structured content, inline editing, and a powerful content repository for building websites and content-driven apps.
Activity unknown
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 9 of 13 shipped a commit in the last six months. Licences in this list: GPL-3.0, MIT, GPL-2.0. In exchange you take on hosting, backups and updates yourself.
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