MODx is an open source PHP application framework and CMS for creating modern web apps. It allows developers and advanced users to get as much control as needed. It is not only a CMS, but a framework at the same time, making it a CMF, and one of the best at it.
Features of MODx:
- Strong Web standards support
- Ajax enabled
- PHP application framework included
- Cross-browser tested
- Graphic installer
- WYSIWYG editing
- Menu manger
- PAge management
- User administration
- Nicely crafted admin backend
- SEO customization options
- User sessions management
- Error handling
- Themes
- Add-ons
- Custom Content Types
- Documentation