Uwarp

First run downloads FFmpeg (~25 MB) once in this browser. AVCHD MTS files from camcorders convert locally — no server upload.

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MTS to MP4 converter online free

Convert MTS to MP4 online free. Free MTS to MP4 converter — turn AVCHD .mts / .m2ts camcorder files into H.264 MP4 with adjustable quality, no server upload.

What is an MTS to MP4 converter?

An MTS to MP4 converter changes AVCHD camcorder files (.mts / .m2ts) into widely supported MP4. People search convert MTS to MP4, MTS file to MP4, or MTS to MPEG-4 converter when phones, editors, or social apps cannot play raw MTS. This free tool runs locally with FFmpeg WebAssembly — no server upload.

MTS to MP4 converter features

Free online MTS to MP4 and .mts to MP4 converter in the browser.

  • Convert MTS to MP4 online

    Upload an MTS or M2TS file and download a compatible H.264 MP4.

  • MTS file to MP4

    Turn AVCHD .mts camcorder clips into MP4 for everyday playback.

  • MTS to MPEG-4 converter

    Output standard MPEG-4 / MP4 for phones, NLEs, and web uploads.

  • Adjustable output quality

    Tune H.264 CRF to balance visual quality and MP4 file size.

  • No server upload

    FFmpeg WebAssembly processes video on your device for better privacy.

How to convert MTS to MP4

How to convert an MTS file to MP4 or .mts to MP4 online.

  1. Upload MTS file

    Drop your .mts or .m2ts camcorder file (up to 200 MB).

  2. Set quality (CRF)

    Keep the default CRF 23 for balanced quality, or lower CRF for sharper output.

  3. Convert and download

    Click Convert to MP4, then download the result.

Great for

Common MTS to MP4 conversion scenarios.

  • AVCHD camcorder footage

    Convert Sony, Panasonic, and Canon AVCHD .mts clips to MP4.

  • Phone and social uploads

    Change MTS to MP4 before posting where raw MTS is unsupported.

  • Editing workflows

    Standardize MTS footage to MP4 for Premiere, Final Cut, and mobile editors.

  • Sharing with family

    Send MP4 files anyone can open without AVCHD software.

Frequently Asked Questions

Quick answers about this tool—open a question to read more.