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WMA to M4R Converter

Convert WMA files to M4R in seconds, free and unlimited.

🔒 Files are processed on your device. Nothing is uploaded.

How to convert WMA to M4R

  1. Click Choose files or drop your WMA files into the box. You can add several at once.
  2. Make sure M4R is selected as the output format.
  3. Press Convert, then download your M4R files.

WMA

Windows Media Audio, Microsoft's compressed audio format.

M4R

iPhone ringtone format (AAC audio in an MPEG-4 container).

Video and audio are converted with FFmpeg running inside your browser. Short clips finish in seconds; long or high-resolution videos can take a few minutes because your own device does the work. Open Options to trim, resize or change quality.

Other WMA conversions

Convert other files to M4R

FAQ

Is converting WMA to M4R free?

Yes. Unlimited conversions, no sign-up, no watermark.

Are my files uploaded to a server?

No. FieldConvert processes files inside your browser, so your WMA files never leave your device. That makes it private and fast, because there is no upload or download wait.

Is there a file size limit?

Only your device's memory. Files up to about 2 GB work in most desktop browsers.