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Convert your AVI video to MP4

Make an MP4 copy of your AVI, then try it in the player or service where you plan to use it.

By Jay · MiOffice AI · Updated October 24, 2026

Open AVI to MP4→

An eligible guest task may be offered on your device. Otherwise, sign in and check the allowance or credit cost shown. Cloud processing uploads your video and uses credits.

Make an MP4 copy of your AVI, then try it in the player or service where you plan to use it.

How It Works

Step 1Convert one AVI file
Step 2Download and try the MP4

Convert one AVI file

Choose an AVI up to 500 MB. Have several files? Convert them one at a time in this workspace.

Keep MP4 selected under Output. For a straightforward conversion, leave the editing controls unchanged. Click Process AVI to MP4.

Need to adjust the copy? Move Quality toward Higher Quality or Smaller File, and use Resolution if you want a preset size instead of Original. Check the result rather than expecting a guaranteed size or appearance.

Download and try the MP4

Click Download when the result is ready. The studio also attempts an automatic download after processing finishes.

Try the MP4 in the player you plan to use. Check a few points from beginning to end, listen to the sound, and look at any text in the picture. Keep the AVI until the copy meets your needs.

Convert the AVICheck the MP4

Questions about AVI conversion

No. The video is re-encoded for MP4. Do not assume the output will look identical or be smaller than the source.

Do not assume so. The workspace has no track-selection controls. Check the downloaded copy if you need a particular audio track or subtitles.

The upload limit is separate from the amount your device can process. If on-device processing cannot handle the video, check the available cloud option and its credit requirement.

AVI is a container that can hold different types of encoded video and audio. Two files with the same extension can therefore need different decoding support. If one fails, check that it plays correctly and try a fresh copy of the original.

Learn More

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Continue with a related tool

Choose another step for your project. Each tool shows its supported inputs and processing options before you start.

MKV to MP4Convert an MKV video into an MP4 copy.Change Video SpeedSpeed up or slow down a clip.Compress VideoUpload your video, process it, and compare the download with the original before you send it.WebM to MP4WebM video is converted to MP4 with H.264 video and AAC audio. One WebM file, up to 500 MB.MOV to MP4Convert one MOV video up to 100 MB to an MP4 copy. Keep MP4 selected, review processing access and check picture, audio and playback after saving.Video ConverterConvert one video to MP4 or WebM. Choose output quality and resolution, process the clip, and check the downloaded copy.

Convert video formats: Choose a compatible format, then trim or compress the video.

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