AVI to MP4 Converter

Turn an old AVI recording — from a camera, camcorder or archive — into a modern MP4 file that plays on any phone, TV or browser.

Video
Add video or drag it here · MP4, WebM, MOV, MKV, AVI Up to 200 MB and 5 minutes · with Prime up to 1 GB and 20 minutes

Up to 15 seconds — 2 energy, up to 5 minutes — 3, longer — 5. The result is saved to your archive.

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Convert Old AVI Videos to Modern MP4

Convert AVI to MP4 online for free: turn old AVI recordings into MP4 that plays on phones, TVs and in browsers. No software needed.

Why Convert AVI to MP4

  • Modern device playback — phones, tablets and smart TVs play MP4 natively, while AVI often needs extra codecs
  • Much smaller files — old AVI codecs are inefficient — H.264 MP4 is typically several times smaller at the same quality
  • Web and messenger ready — MP4 uploads to social media and plays inline in chats
  • Archive rescue — digitized home videos in AVI become easy to share and store

How to Convert AVI to MP4

  1. Upload your AVI file or paste a direct link to it.
  2. Or pick a clip you generated on Homiwork — your video archive is one click away.
  3. Check the output settings — MP4 is already selected.
  4. Press “Convert to MP4” and download the result or find it in your archive.

About the AVI Format

AVI is one of the oldest video containers: Windows camcorders, digitizers and early editors produced it for decades. The codecs inside (DivX, Xvid, MJPEG) are now poorly supported and waste space. Converting AVI to MP4 re-encodes the video into H.264 — the file becomes several times smaller, plays on every modern device and is ready for messengers and the web. It's the easiest way to give old family recordings a second life.

Frequently Asked Questions

Is the AVI to MP4 converter free?

Yes. New users get starter energy points; one conversion costs 2–5 points depending on the video length.

Will the MP4 be smaller than my AVI?

Almost always — H.264 compresses far better than old AVI codecs, typically shrinking the file several times.

Does the conversion reduce quality?

Re-encoding uses high quality settings; visually the MP4 matches the source.

What is the maximum file size?

Up to 200 MB and 5 minutes by default, up to 1 GB and 20 minutes with Prime.

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