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Convert WMV to M4R

Extract the audio from WMV videos and save it as M4R — ideal for custom iPhone ringtones and text tones.

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

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

    How to convert WMV to M4R

    1. 1

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

    2. 2

      Check that M4R 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 M4R downloads automatically. Converting several files? Grab them all as a ZIP.

    WMV vs M4R

    Only the sound is kept — the picture is dropped, so the M4R file is far smaller than the WMV video.

    WMVM4R
    Full nameWindows Media VideoiPhone Ringtone (AAC)
    TypeVideoAudio
    CompressionLossyLossy
    Developed byMicrosoftApple
    Introduced19992007
    Plays on iPhone✕ No✓ Yes
    Plays on Android◐ Partly / with an app✕ No
    Plays on Windows✓ Yes◐ Partly / with an app
    Plays on Mac✕ No✓ Yes

    About WMV and M4R

    WMV: WMV is Microsoft's video format for Windows Media Player and older Windows PCs.

    M4R: M4R is the iPhone ringtone format. It is an AAC audio file (the same as M4A) with a different extension, and iOS only accepts ringtones up to 30–40 seconds long.

    Frequently asked questions

    How do I convert WMV to M4R on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your WMV, make sure M4R is selected and tap Convert. The M4R file is saved to your Downloads.
    How long can an iPhone ringtone be?
    Keep it to 30 seconds. If your file is longer, set a start time under Advanced → Trim and the next 30 seconds are used. For a visual editor, try the iPhone Ringtone Maker.
    Can I convert only part of the WMV?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Will converting WMV to M4R reduce quality?
    Only the sound is kept — the picture is dropped, so the M4R file is far smaller than the WMV video.
    Is this WMV to M4R 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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