Convert AVI to MP4
AVI is an old format with big files that many phones and websites no longer play. MP4 is smaller and plays everywhere.
Open the tool, it's freeFree · no account · no watermark · your files stay on your device
AVI is an older Windows video format with large files. MP4 is the standard video format; its sound is usually AAC.
The MP4 uses H.264 video and AAC sound, the combination that plays on every phone, TV, browser and social app. Keep the original size or make it 1080p, 720p or 480p.
What you get
- AVI in, MP4 out
- Keep the size or pick 1080p, 720p or 480p
- Same, high or smaller-file quality
- Uses your graphics chip for speed where it can
- No watermark, nothing uploaded
How to convert AVI to MP4
- Open AVI to MP4 and choose your video.
- MP4 is already selected. Pick the quality and size.
- Press Convert and save the MP4 file.
Tip: If a site or app refuses your AVI, converting it to MP4 is almost always the fix.
Questions
Will the video look worse?
With quality set to Same as the original, Clipabay picks a bitrate that matches your video, so it looks the same. Choose Smaller file when size matters more.
Is there a size limit?
No fixed limit. Long videos and files of several GB work; it depends on your device’s memory.
Are my files uploaded?
No. Everything happens inside your browser, so your files stay on your own computer or phone.
Is it really free?
Yes. There is no account, no trial, no watermark and no limit on how many files you convert. Clipabay is kept going by people who choose to buy us a coffee.