Reboot CMS is a lightweight flat-file content management system. It stores pages as Markdown or PHP files, maps file paths directly to URLs, and requires no database.
The software supports reusable content blocks written in PHP, allowing pages to combine straightforward Markdown editing with structured layouts. A browser-based administration interface provides live previews, version history, media management, site configuration and role-based user accounts.
This is free and open source software.
Key Features
- Stores content in flat Markdown files without a database.
- Maps page files and directories directly to website URLs.
- Supports reusable, configurable content blocks written in PHP.
- Provides a browser-based Markdown editor with live preview.
- Retains page snapshots that can be viewed and restored.
- Manages uploaded media files and folders through the administration interface.
- Offers Admin, Editor and Disabled user roles.
- Supports multilingual sites with language-specific content directories.
- Uses YAML front matter for page metadata and YAML files for site configuration.
- Provides an AddOn system with request lifecycle hooks.
- Includes an administration interface for applying software updates.
- Runs with PHP’s built-in server, Apache or a Docker-compatible container engine.
Website: github.com/shaack/reboot-cms
Support:
Developer: Stefan Haack
License: MIT License

Reboot CMS is written in PHP. Learn PHP with our recommended free books and free tutorials.
Related Software
| Flat File Content Management Systems | |
|---|---|
| Grav | Super fast modern CMS |
| Pico | Blazing speed, flexibility, and a lightweight footprint |
| Bludit | Simple flexible system storing content in JSON |
| CMSimple | PHP based content management system |
| GetSimple CMS | XML based data storage |
| WonderCMS | Another flat file CMS built with PHP |
| HTMLy | Prioritizes simplicity and speed |
| Automad | Includes a multi-layer caching engine and elegant dashboard |
| Typemill | Uses Markdown files to create websites and eBooks |
| HamsterCMS | Tiny flatfile PHP content management system |
| Flextype | Hybrid CMS: headless CMS and full functionality of a traditional CMS |
Read our verdict in the software roundup.
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