MTS MP4
Free online converter

Convert MTS to MP4

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MTS to MP4 converterFREE
Drop a .MTS file here
or pick one - we convert it to .MP4 and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert MTS to MP4

  1. Add your .MTS file - drop it in the box above or click to browse.
  2. Convert it to .MP4 in a few seconds.
  3. Download your new .MP4 file.

What to expect

  • MTS already stores H.264 video, so converting to MP4 is often a lossless container re-wrap - quality only drops if you change the codec or bitrate.
  • Many camcorders record in 1080i (interlaced); enable Deinterlace or Decomb in HandBrake to prevent horizontal combing on computer and phone screens.
  • Long recordings are split into multiple numbered .mts files - import the full AVCHD folder in your editor to keep spanning data intact.

Frequently asked questions

Does converting MTS to MP4 reduce quality?
Not significantly - both formats carry H.264 video. Quality only drops if the converter re-encodes at a lower bitrate; use FFmpeg with -c:v copy to remux without any re-encoding.
Why does my converted video look jagged or combed?
Your camcorder recorded in 1080i (interlaced). Enable Deinterlace or Decomb in HandBrake before converting to remove the artifact.
Can I convert multiple MTS files at once?
Yes - in HandBrake, add each file as a separate job in the Queue. FFmpeg can batch-convert with a simple shell loop.
Why won't my editor import MTS files directly?
Most editors need the complete AVCHD folder structure (PRIVATE/AVCHD/BDMV/STREAM) to read clip metadata and spanning data; try importing the whole folder instead of individual .mts files.