DivFix for Mac

Overview of DivFix for macOS

DivFix is a free, open-source utility for macOS that helps you diagnose and fix AVI video files. Its primary purpose is to rebuild missing or damaged index data so that partially downloaded or corrupted AVIs become readable again. This makes it especially useful for people who obtain AVI files from multiple, sometimes unreliable, sources.

Primary functions and capabilities

• Batch repair of multiple AVI files by reconstructing their internal index information.
• Previewing AVI files that are still being downloaded so you can view content before a transfer completes.
• Filtering and targeting temporary download folders to ignore unrelated files and speed up the preview process.
• A tool to remove an AVI file’s index entirely, which prevents most media players from recognizing the file until an index is rebuilt.

Inspecting and previewing incomplete downloads

DivFix can monitor a directory containing temporary downloads and show only the AVI files you care about. You point the app to the folder where in-progress files are stored, apply simple filters to remove noise, and then preview playable portions of files even while the transfer is ongoing. This reduces the need to wait for a full download before confirming a file’s contents.

The index-removal feature

The “strip index” option deletes an AVI file’s index data on purpose. Removing the index makes the file appear corrupted or unplayable to most players — a reversible action if you later rebuild the index with DivFix or another repair tool. This can be useful for testing, troubleshooting, or intentionally rendering a file unreadable until repairs are applied.

Recommended alternatives

• MPV — lightweight, scriptable player with broad codec support and robust playback features.
• VLC media player — widely used, free, and capable of handling many damaged or unusual media files.
• HandBrake — focused on transcoding, useful if repair plus re-encoding is the preferred workflow.