No upload, 100% local, no account

Audio cutter

Select a start and end to keep or remove a clip. Fade in/out and a ringtone preset. Everything runs in your browser, your file never leaves your device.

How Audio cutter works

Audio cutter lets you trim a clip out of an MP3, WAV, M4A, AAC, OGG or FLAC file right in your browser. Pick a start and end, then either keep that selection (with an optional fade in and fade out) or remove it and join what is left. A one-click ringtone preset grabs the first 30 seconds with a clean fade-out, ideal for a custom phone ringtone.

It runs through ffmpeg compiled to WebAssembly, with the keep mode returning just your selection and the remove mode stitching the rest back together. The cut range is re-encoded so the edit is accurate, with no sign-up and no watermark.

Frequently asked questions

Are my files uploaded to a server?

No. ffmpeg compiled to WebAssembly cuts your audio in this browser tab, the file is read into memory on your own device, the selected section is taken there with the atrim filter (optionally with afade in/out), and the result is offered as a local download. Nothing reaches Sunasty or any third party. Open your browser's DevTools, go to the Network tab and watch: no request carries your audio.

How do I make a ringtone?

Load your song, click the "Ringtone preset" button (it selects the first 30 seconds with a 2-second fade-out), then adjust the start/end if you want a different part. Cut it and download, the result keeps your original format (e.g. MP3).

What is the difference between "keep" and "remove"?

Keep produces just the selected segment between your start and end times. Remove deletes that segment and stitches the remaining parts back together, so you can cut out an ad, a silence or a mistake from the middle.

Will cutting re-compress my audio and lose quality?

Cutting re-encodes the selected range so the cut is accurate and fades are applied cleanly. Quality loss is minimal for a single pass; for lossless output choose a WAV or FLAC source.

Does it work offline?

Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.

Is it free? Do I need an account?

It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.