M4R Converter
The iPhone ringtone format - AAC audio with an .m4r extension, limited to 40 seconds.
Drop files to convert to M4R
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more ยท Processed on your device - nothing is uploaded
M4R at a glance
| Full name | iPhone Ringtone (AAC) |
|---|---|
| Type | lossy |
| File extension | .m4r |
| MIME type | audio/mp4 |
| Developer | Apple (2007) |
| Best for | custom iPhone ringtones and alert tones |
| Compatibility | iPhone (via Finder, iTunes or GarageBand), macOS. |
| Bitrates | 128-256 kbps |
Convert to M4R
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About M4R
What is a M4R file?
M4R (iPhone Ringtone (AAC)) is a lossy audio format developed by Apple in 2007. The iPhone ringtone format - AAC audio with an .m4r extension, limited to 40 seconds.
What is M4R best for?
M4R is best for custom iPhone ringtones and alert tones.
What plays M4R files?
iPhone (via Finder, iTunes or GarageBand), macOS.
How big are M4R files?
About ~1.9 MB at 256 kbps per minute of stereo audio.
How do I convert to M4R?
Drop your files above, make sure M4R is selected and click Convert. It's free and works on any device.