compressvid.ioTurn any MP3 into an iPhone ringtone (.m4r). Clip the chorus, add a fade, download the file — free, no watermark, nothing to install.
Need volume, waveform, or M4A/MP3 export? Open the full audio editor
An iPhone will not treat an MP3 as a ringtone. The system looks for a file that ends in .m4r — a short AAC clip in an MPEG-4 container with that exact extension. Convert the song or sound effect you already have into M4R and iOS can list it under ringtone settings. The converter above keeps the audio, clips it if you want a short hook, and hands back a ready-to-sideload .m4r file. No watermark, no install, no account for a first try.
Apple is picky about format and length. Match these constraints once and the file just works.
| Rule | What it means | What to do |
|---|---|---|
| Container & extension | iOS only offers M4R files in the ringtone picker | Export as .m4r — this tool names the file for you |
| Codec | Ringtones are AAC audio inside MPEG-4 (same as M4A) | Keep AAC; do not try to stuff MP3 frames into .m4r |
| Classic ringtone length | Most guides and apps cap ringtones around 30–40 seconds | Clip the chorus or hook to under 40 s before converting |
| Text tones / alerts | Even shorter — often a couple of seconds | Use the start/end fields to isolate one note or phrase |
| File size | Ringtones are tiny; a 30 s clip is well under 1 MB | Do not chase bitrate — 128 kbps AAC is plenty |
M4R is not a different codec from M4A. It is the same AAC audio with a different file extension so iOS files it under ringtones instead of music. Renaming alone often works, but converting cleanly avoids container quirks. Limits checked October 2026.
Three steps in the browser. Clip first if you only want the hook — then download the .m4r.
Drop in an MP3, M4A or WAV. The player loads in the page so you can find the exact moment you want before converting.
Set start and end in seconds to keep a short section — 20–30 seconds is a classic ringtone. Fade in and fade out soften the edges so the loop does not click.
Press Convert to M4R. The file arrives as name.m4r, encoded as AAC. Airdrop or copy it to the iPhone and pick it in Settings → Sounds → Ringtone (sideloading steps vary by iOS version — see the FAQ).
iOS accepts longer files, but the practical ringtone window is short. Use this as a starting point.
| Clip length | Typical use | AAC size at 128 kbps |
|---|---|---|
| 5–10 seconds | Text tone / alert | ≈ 80–160 KB |
| 15–30 seconds | Standard ringtone hook | ≈ 240–480 KB |
| 30–40 seconds | Classic ringtone length | ≈ 480–640 KB |
| 40+ seconds | Technically possible, rarely useful | Still under 1 MB |
If the song’s best part starts at 1:12, set Start to 72 and End to 102. The converter keeps that range and exports it as one ringtone file.
This is a focused converter, not a full audio studio. It exists to get a legal ringtone file out of a song you already own, with just enough control to pick the right few seconds.
Start and end are in seconds. Preview the audio, note the timestamps, type them in. Empty fields mean the whole file.
Fade in and fade out are applied on export — useful when the hook starts on a hard beat and would otherwise pop.
Need volume, waveform scrubbing, or M4A/MP3 export? The full Edit Audio tool is one click away and shares the same converter engine.
Guests can convert daily without signing in. Signed-in users get monthly credits for longer or more frequent jobs.
Straight answers before you convert.
Upload an MP3, clip the hook, download a .m4r — free and no watermark.