MP4 to AVI

Convert MP4 videos to AVI. Large videos can take a few minutes.

This tool repackages an MP4 video into the AVI container, useful for older media players and legacy editing software that don't handle MP4 well. Files up to 100MB are supported; your file uploads over an encrypted connection and converts, which can take a few minutes for longer videos.

Drop your MP4 file here

Upload files

Size up to 100 MB

How do I use MP4 to AVI?

1
Upload your MP4 file: drag it into the drop zone or click to browse. Files up to 100MB work.
2
Click Convert to AVI. The conversion runs online; longer videos can take a few minutes.
3
Download the AVI file for use in older media players or editing software.

Frequently asked questions

Why would I convert MP4 to the older AVI format?

AVI is still expected by some legacy hardware players, older editing suites, and specific broadcast or archival workflows. If your destination software or device only lists AVI as a supported input, this converter bridges that gap.

Will the file size change a lot?

AVI generally compresses less efficiently than MP4, so the converted file is often noticeably larger than the original for the same visual quality. This is a normal property of the AVI container, not a conversion error.

Do I need an account or a subscription?

Universal PDF requires a Pro subscription. One subscription unlocks every tool on the site, cancel anytime.

How long do you keep my video?

Your file uploads over an encrypted connection, and you can delete it anytime from My Files.

Last updated: July 8, 2026