AudioMix Web Studio

MP3 to M4R Converter

Convert MP3 to iPhone ringtone format instantly

Convert to M4R Now

Easy iPhone Ringtone Creation

iPhone Compatible

Create M4R files that work perfectly as iPhone ringtones and alert tones.

Auto Trim to 40s

Automatically trims audio to iPhone's 40-second ringtone limit if needed.

Built-in Editor

Trim and select the best part of your song before converting to M4R.

High Quality Output

Maintain excellent audio quality in the converted M4R ringtone file.

How to Convert MP3 to M4R

Upload MP3 File
Upload the MP3 file you want to convert to an iPhone ringtone.
Select Best Section
Choose the best 20-40 second section using the waveform editor.
Download M4R
Convert and download the M4R file ready for your iPhone.

Frequently Asked Questions

M4R is Apple's ringtone format for iPhone. It's essentially an AAC audio file with a .m4r extension, limited to 40 seconds for ringtones.

Connect your iPhone to a computer, open Finder (Mac) or iTunes (Windows), drag the M4R file to your device, then select it in Settings > Sounds & Haptics > Ringtone.

Yes, iPhone ringtones must be 40 seconds or shorter. Text tones must be 30 seconds or shorter. Our tool automatically handles these limits.