Video tool

Convert MP4 to AVI in Your Browser

Create an AVI copy of an MP4 in your browser for older players, editing software, or upload systems. The video stays on your device.

Route MP4 → AVI

or drop here · up to 500 MB

Preview (optional)

When your browser supports it, your video appears here. If preview does not load, you can still convert your file normally.

Ready

Use upload name

Conversion uses your device's processor and does not send the video to a server.
Long or high-resolution videos need more processing time and memory.
Keeping this tab active can help larger conversions finish reliably.

AVI can suit older Windows software and devices built around that container.
An AVI file may be larger than its MP4 source, depending on the encoded streams.
Some apps support AVI containers but still require a particular video codec.

Conversion taking too long? Close processor-heavy apps or test with a shorter clip.
AVI will not play? Try another player; AVI support can vary by the codec inside it.
Upload rejected? Check the service's file-size limit as well as its AVI requirement.

Why convert MP4 to AVI?

AVI can be useful when older playback, editing, or upload software does not accept your MP4 file.

Is my MP4 uploaded to a server?

No. Conversion runs on your device, so the source video stays local.

How should I check the converted AVI?

Play the downloaded file in its intended app and confirm the picture, sound, duration, and sync before sharing it.

Quick use cases