Free & Instant

Convert AVI to MP4 Online — Free & Fast

Transform AVI video files to MP4 for smaller size and wider compatibility.

Upload your file

Drag & drop your .avi file here, or browse
Multiple files supported

.AVI.MP4

Maximum file size: 500 MB · Multiple files supported

100% private — files are processed in your browser, never uploaded

How It Works

AVI to MP4 in 4 Easy Steps

Convert AVI to MP4 in seconds — no sign-up, no upload, no catch.

  1. 1

    Upload AVI file

    Drop your .avi file or click Browse.

  2. 2

    MP4 auto-selected

    MP4 is pre-selected as the output format.

  3. 3

    Convert locally

    Your AVI video is re-encoded as MP4 in your browser.

  4. 4

    Download MP4

    Save your MP4 video.

Use Cases

Why convert AVI to MP4?

  • Play AVI videos on modern devices
  • Reduce AVI file sizes
  • Make AVI footage compatible with online platforms

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Need to convert other formats? Try these popular free online tools.

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FAQ

Frequently Asked Questions

MP4 compression may slightly reduce quality depending on the settings used.