How to Cut an MP3 — Trim Just the Part You Need, No Software (Ringtones, Highlights)
Trim MP3, M4A, or WAV to the section you need: pick the range on a waveform, add fades, make a ringtone. No install, no sign-up, no upload — it runs in the browser. What happens to audio quality is explained too.
You want the chorus as a ringtone, or just one minute out of a long recording — too small a job to install an editor for. Open the file in the browser, drag across the waveform, and it's done in seconds. The file never leaves your device.
Steps
- 1Open Audio Cut and drop in the MP3 (or M4A, WAV, OGG, FLAC).
- 2The sound is drawn as a waveform. Drag across the part to keep, fine-tune the end handles to the second, and press ▶ to preview.
- 3Choose the output format (MP3, M4A, WAV) and click Cut to download the trimmed file.
Making a ringtone
- •About 30 seconds works well. Turn on fade in/out so it doesn't start and stop abruptly.
- •For iPhone, save as M4A and add it through the Music app or GarageBand (renaming to .m4r also works). Android takes MP3 as-is.
- •For very short sounds such as notification tones, WAV is lossless.
What happens to quality
WAV is lossless. MP3 and M4A are re-encoded at 192 kbps; if the source was a 128 kbps MP3 it won't get better than that (re-compressing the cut introduces a tiny loss that's hard to hear). Lossless stream-copy cutting isn't something this tool does.
Related jobs
- •Cutting audio out of a video (MP4): extract MP3 first with Audio Convert, then cut.
- •Joining several sections: cut and save each, then join them in order with Audio Merge.
- •Cleaning up long recordings (lectures, meetings): trimming the start and end is often all that's needed.
TipFiles are processed in the browser only and never sent anywhere; there's no account. Files over 900 MB don't fit in browser memory — shrink them first with Audio Convert.
Drop the file in, drag the range on the waveform, done.
Open Audio Cut →