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Convert AVI to MP4

Old AVI files → modern MP4

Convert an old AVI into a modern MP4 in your browser using the built-in universal engine — old DivX/Xvid-era video is re-encoded to H.264 so it plays on today's phones, TVs and editors. Nothing uploaded.

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Rescues old footage

AVI files from old cameras and the DivX era get re-encoded into a clean modern MP4 — watchable and editable again on today's devices.

Nothing uploaded

Your video is processed entirely on your device — it never leaves your browser and nothing is stored on a server. Watch the network tab: no upload.

Free, no watermark, no caps

No account, no watermark, no length or file-size tiers, no daily limit. The things other video sites paywall are simply free here.

How to do it

  1. 1Drop in the .avi file (the universal engine loads once, ~32 MB).
  2. 2Optionally trim.
  3. 3Export the .mp4.

FAQ

Why won't my AVI play anymore?

AVI is a 1990s container and its common codecs (DivX/Xvid/MJPEG) have fallen out of support. Re-encoding to MP4/H.264 makes the footage playable everywhere again.

Does this handle large old files?

AVI conversion uses the built-in universal engine, which is best with files up to a few hundred MB. For very large archives, convert in chunks using trim.

Is my video private?

Yes — the conversion runs entirely in your browser; nothing is uploaded.

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All free, no watermark, nothing uploaded — your hardware does the work. Open the full Video Studio →