Audio Cutter
Processed locally in your browser — nothing is uploaded.
Quick answer
An audio cutter lets you select one section of a track on its waveform and keep exactly that part, discarding the rest. Drag the start and end handles over the passage you want, preview it, and export just that slice. This runs entirely in your browser on the audio engine — the file is decoded and re-cut locally, and nothing is ever uploaded to a server.
How to audio cutter
Load your audio
Drop an MP3, WAV, M4A or other file onto the drop zone. The waveform is drawn from the decoded audio so you can see where the sound is.
Select the section to keep
Drag the two handles to bracket the passage you want. Play the selection to confirm the in and out points are right down to the fraction of a second.
Cut and download
Export the selection. You get a new file containing only the section between the handles, in your chosen format, ready to save.
What is the difference between cutting and trimming?
People use the words loosely, but there is a clean distinction worth holding onto. Trimming shaves time off the outer edges — you set a start and an end, and everything between them survives. Cutting in the destructive-edit sense removes a chunk. This tool is built around the most common real task: mark a region and keep that region, throwing away everything before and after it. That is why it is the go-to for pulling a clip or a sample out of a longer recording, where the good part sits somewhere in the middle.
Functionally, keeping a selection and trimming to that selection produce the same result, so if you prefer the framing of edge handles, trim audio does the identical job with the same waveform. Reach for this cutter when your mental model is "grab this bit", and the trimmer when it is "chop the ends".
How precise can the cut be?
The handles snap to the timeline in milliseconds, and the preview plays exactly what will be exported, so you can nudge an in-point until it lands right before a downbeat or right after a breath. For music, cut on the beat; for speech, cut in the silence between words so the edit is inaudible. Zoom in on a busy waveform to place the boundary against the sound rather than by ear alone.
| You want to… | Use |
|---|---|
| Keep one section, discard the rest | Audio cutter (this tool) |
| Shave silence off the start and end | Trim audio |
| Break one file into two at a point | Split audio |
| Turn a clip into a phone ringtone | Ringtone maker |
| Stitch several clips together | Merge audio |
Which formats can you cut?
The cutter reads the common lot — MP3, WAV, M4A/AAC, FLAC, OGG and Opus — because they are decoded through the same engine that powers the rest of the audio suite. You can export the cut in a widely-compatible format; if you need a different container afterwards, hand the result to the audio converter.
Is my audio uploaded to cut it?
No. The file is decoded, displayed as a waveform and re-cut inside your browser using ffmpeg compiled to WebAssembly. It never travels to a server. You can prove it: open your browser DevTools, switch to the Network tab, and cut a file — no upload request appears. That matters for unreleased music, private interviews and any recording you are not free to share.
Related audio and media tools
Pair the cutter with split audio to divide a recording, merge audio to join clips, or fade in / out to soften a hard edit. If the clip you cut is a slice of dialogue and you also have its captions, you can turn a subtitle file into a plain transcript to caption or quote it.
Your files never leave your device
Processed locally in your browser — nothing is uploaded. You can verify it yourself: open your browser’s developer tools, watch the Network tab, and use the tool — no upload request is ever made.
Frequently asked questions
Does the audio cutter re-encode my file?
Exporting a cut generally re-encodes the selected section so the boundaries are exact. If you export to the same format, quality stays close to the source; choose a lossless format like WAV or FLAC if you want to avoid any generation loss.
How do I keep just the chorus of a song?
Drag the start handle to the first beat of the chorus and the end handle to where it finishes, play the selection to check, then export. Only the chorus is kept.
What is the shortest section I can cut?
You can cut down to a fraction of a second. The handles resolve in milliseconds, so short samples and one-word clips are possible.
Can I cut a WAV or FLAC, not just MP3?
Yes. WAV, FLAC, M4A, AAC, OGG and Opus all decode in the browser, so you can cut any of them, not only MP3.
Will cutting change the pitch or speed?
No. Cutting only removes audio outside your selection; the kept section plays back at its original pitch and speed.
Is there a length limit on the file I load?
There is no fixed limit, but very long files use more memory because the whole track is decoded locally. Feature-length recordings work; extremely large ones depend on your device’s RAM.
Do I need to install anything or sign up?
No. The cutter runs in the browser with no install and no account. The one-time engine download happens the first time you edit and is then cached.