01 / Drop
Choose the sound
A song, a voice memo or a video. It plays in the page.
Free tool
Make a ringtone from a song, a voice memo or the sound of a video. Pick the part, add a fade, and save it as an iPhone ringtone (.m4r) or an MP3 for Android. It runs in your browser, so nothing is uploaded.
This runs in your browser. Your files are never uploaded.
How it works
01 / Drop
A song, a voice memo or a video. It plays in the page.
02 / Mark
Drag the sliders or set the marks while it plays, and add a fade.
03 / Save
Save an iPhone .m4r or an MP3, then add it to your phone.
Questions
No. The ringtone is made in this tab with your browser, so the file never leaves your computer.
Connect the iPhone to your Mac, open it in Finder, and drag the .m4r file onto the iPhone. Then pick it in Settings, Sounds and Haptics, Ringtone.
Most ringtones are 30 seconds or less, and the page starts with the first 30 seconds. It warns you if you pick more.
Choose MP3, copy the file to the phone's Ringtones folder, then pick it in the sound settings.
For your own phone, most people do. Sharing or selling ringtones made from songs you do not own is a different matter.
iPhone ringtones need Chrome, Edge or Safari. MP3 works in Firefox too.