M2TS AVI
Free online converter

Convert M2TS to AVI

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M2TS to AVI converterFREE

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Tested on macOS, Windows & Linux
Last verified Nov 2026

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How to convert M2TS to AVI

  1. Add your .M2TS file - drop it in the box above or click to browse.
  2. Convert it to .AVI in a few seconds.
  3. Download your new .AVI file.

What to expect

  • AVI does not support multiple audio tracks or embedded subtitles, so Blu-ray extras such as DTS-HD audio and PGS subtitle streams are lost in the conversion.
  • The output .avi is usually larger than an .mp4 of identical quality because the AVI container is less space-efficient.
  • If you need to keep multiple audio tracks or subtitles, convert to MKV instead of AVI.

Frequently asked questions

Will I lose quality converting M2TS to AVI?
Yes - the video is re-encoded, not remuxed, so some quality change is unavoidable. Using a high-quality preset in HandBrake (RF 18-22) keeps the result close to the original.
Can I convert 4K M2TS to AVI?
Technically yes, but most AVI players and editors cannot handle HEVC inside AVI. Re-encode to H.264 - HandBrake does this by default.
Why is my converted AVI larger than the original M2TS?
AVI is a less efficient container than MPEG-TS, and re-encoding at a high-quality bitrate adds size. MP4 produces smaller files for the same visual quality.
Is there a free way to convert M2TS to AVI on Mac?
Yes - HandBrake is free and runs on macOS, or you can use FFmpeg from the command line via Homebrew.