M4R AAC
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Convert M4R to AAC

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M4R to AAC converterFREE
Drop a .M4R file here
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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert M4R to AAC

  1. Add your .M4R file - drop it in the box above or click to browse.
  2. Convert it to .AAC in a few seconds.
  3. Download your new .AAC file.

What to expect

  • M4R stores AAC already, so the audio can carry over with little or no additional loss.
  • The ringtone container and its metadata are removed, leaving a plain audio bitstream.
  • Quality cannot exceed the original lossy M4R recording.

Frequently asked questions

Does M4R to AAC lose quality?
M4R already contains AAC audio inside an MP4 container, so extracting it to a raw AAC bitstream can be done without a new lossy pass. When a re-encode is involved, the change in quality is minor since the codec is the same family.
Why convert M4R to AAC?
M4R is recognized mainly as an iPhone ringtone, while a plain .aac file is a more general-purpose audio file. Converting exposes the same audio in a format broader players treat as ordinary audio.
Where does an AAC file play?
AAC plays in VLC, Windows Media Player on Windows 10/11, and the Music app on Apple devices, and it is the default audio format for many streaming and broadcast uses.
What changes besides the extension?
The AAC bitstream is unwrapped from the MP4/ringtone container, so container-level tags and the ringtone role are dropped. The audio content itself is unchanged when no re-encode occurs.
Learn about the formats: .M4R · .AAC
Programs that convert M4R: Apple iTunes for Windows · Apple iTunes for Mac · Tiny Audio Converter