Introduction 

What does it do? 

Find it. Fix it. Never rm -rf a client's fileadmin by accident.

Filefix is a TYPO3 backend extension that keeps fileadmin honest. Real-world fileadmin folders rot in a few specific ways:

1. Content/extension mismatches. Someone renames a .png to .jpg, or an old CMS re-exported a Photoshop file as .jpg without converting it. The browser silently mis-renders it, or breaks entirely.
2. Unused files pile up. Thousands of uploads that no page, no content element and no FlexForm references anymore.
3. The same file, uploaded again and again. Identical content under different names and folders, each copy taking its own disk space and metadata.
4. Camera-original images. 6000 px wide, 8 MB JPEGs uploaded straight from the camera, for a slot that never renders wider than 1900 px.

Filefix addresses all of these with purpose-built tools that live where editors already work:

• MIME Fix inside the native file list
• File Cleanup for unreferenced files
• Duplicate report with a deep usage check
• Oversized images report with in-place resize
• Dashboard widgets showing unused files and space