Convert AVI to MP4
AVI is an older format from cameras and Windows PCs. Browsers, phones and most websites can’t play it. Convert it here, on your own device.
Your file stays on your device. Nothing is uploaded.
How to convert AVI to MP4
- Choose your AVI file.
- Pick "Plays everywhere" (H.264) or "Fastest".
- Press "Convert to MP4", check the preview and download.
Your video never leaves your device
The conversion runs in your browser. Nothing is uploaded, so there is no upload wait and no copy of your video on a server.
Frequently asked questions
Why does AVI take longer?
Browsers have no built-in support for AVI, so we use a slower converter that works everywhere. A few minutes for a long video is normal; keep the tab open.
Is it free? Is there a watermark?
It is free, adds no watermark and needs no sign-up.
"Plays everywhere" or "Fastest": which one should I pick?
"Plays everywhere" re-encodes the video to H.264, which every phone, computer and TV can play. "Fastest" keeps the original video when the MP4 format allows it, so it takes seconds and the quality is unchanged, but HEVC video may not play on older Windows PCs.
How big can my file be?
Up to 2 GB on desktop Chrome and Edge, 1 GB on desktop Safari and 500 MB on phones.