How to create your own ringtone from MP3 on iPhone?

Hi, I looked all over and tried a bunch of different steps, so wanted to post the basic ones that worked for me for converting a MP3 to a iPhone ringtone.

Save your MP3 file to the Mac desktop.

Open in Quicktime player

Edit to length. If needed, you can shorten it by clicking Split Clip and delete the portion you don't need.

Save the file and/or Export As Audio only.

With the file saved, ensure saved with .m4r extension (likely have to be renamed from .m4a)

Plug in phone

Drag your new audio file to iPhone synch screen that shows up on your Mac (like where you go to decide to sync audio files/podcast/etc.), no particular location; you'll see the little green + when you do this.

You'll see it synch to your iPhone on the screen.

Now if you go on your iPhone you'll see the new custom ringtone under Sounds and Haptics.

I hope this helps someone else out.

I wasn't able to get it working via GarageBand, but the above works for me.

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