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Convert MTS to CAF

Extract the audio from MTS videos and save it as CAF — ideal for iOS app sounds and Apple developer workflows.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    Quality
    Advanced options
    Trim (optional)
    Use minutes:seconds, e.g. 1:05.5

    How to convert MTS to CAF

    1. 1

      Tap Choose files and select one or more MTS files (or drag them in).

    2. 2

      Check that CAF is selected. Use Advanced options for bitrate, channels or trimming.

    3. 3

      Press Convert. Everything happens on your device — no upload, no waiting in a queue.

    4. 4

      Your CAF downloads automatically. Converting several files? Grab them all as a ZIP.

    MTS vs CAF

    Only the sound is kept — the picture is dropped, so the CAF file is far smaller than the MTS video.

    MTSCAF
    Full nameAVCHD VideoCore Audio Format
    TypeVideoAudio
    CompressionLossyLossless
    Developed bySony & PanasonicApple
    Introduced20062005
    Plays on iPhone✕ No✓ Yes
    Plays on Android✕ No✕ No
    Plays on Windows✓ Yes✕ No
    Plays on Mac◐ Partly / with an app✓ Yes

    About MTS and CAF

    MTS: MTS/M2TS files come from Sony, Panasonic and Canon HD camcorders (AVCHD). They are high quality but hard to play on phones.

    CAF: CAF is Apple's flexible audio container used inside iOS and macOS apps and by GarageBand. Files can be any length and hold many codecs.

    Frequently asked questions

    How do I convert MTS to CAF on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your MTS, make sure CAF is selected and tap Convert. The CAF file is saved to your Downloads.
    Will converting MTS to CAF reduce quality?
    Only the sound is kept — the picture is dropped, so the CAF file is far smaller than the MTS video.
    Can I convert only part of the MTS?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Is this MTS to CAF converter free?
    Yes — completely free with no limits on the number of files, no watermark and no account. The site is supported by ads.
    Are my files uploaded to a server?
    No. The converter runs inside your browser using WebAssembly, so your files never leave your device. That's also why it works for private and confidential recordings.

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    Convert MTS to other formats

    MTS to MP4MTS to MOVMTS to MKVMTS to WEBMMTS to AVIMTS to FLVMTS to WMVMTS to 3GPMTS to M4VMTS to MPGMTS to TSMTS to GIFMTS to MP3MTS to M4AMTS to M4RMTS to AACMTS to ALACMTS to WAVMTS to FLACMTS to OGGMTS to OPUSMTS to WEBAMTS to WMAMTS to AIFFMTS to AC3

    Convert other formats to CAF

    MP3 to CAFM4A to CAFM4R to CAFAAC to CAFALAC to CAFWAV to CAFFLAC to CAFOGG to CAFOPUS to CAFWEBA to CAFWMA to CAFAIFF to CAFAC3 to CAFAMR to CAF3GA to CAFAPE to CAFMP4 to CAFMOV to CAFMKV to CAFWEBM to CAFAVI to CAFFLV to CAFWMV to CAF3GP to CAFM4V to CAFMPG to CAFTS to CAFGIF to CAFVOB to CAFHEVC to CAFRMVB to CAF

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