Convert AVI to MP4 Free Online

Free AVI to MP4 video converter. Modernise legacy AVI files into universally playable MP4. No signup. UK platform.

How It Works

Convert legacy AVI files to modern MP4 (H.264). Plays on every device and platform. Preserves quality and audio. Free, no signup, files auto-deleted.

FreeNo signup needed

InstantResults in seconds

SecureFiles auto-deleted

MP4 plays natively on phones, browsers, and modern devices. AVI is an older container with patchy support.

Usually yes — H.264 compression typically reduces size 30-60% with no visible quality loss.

Yes — completely free, no signup.

Free 100MB. Pro 500MB. Elite 1GB.