Remove a section from an audio file — an ad, a mistake, dead air — and keep everything else. Works with MP3, WAV, M4A, OGG and FLAC.
The Audio Cutter removes a section from the middle of a recording and joins what remains — the digital equivalent of splicing tape. It is the quickest way to take out a cough, a false start, an ad break, a long pause or a verse you do not want, without opening a full audio editor.
Unlike simple trimmers it works on the inside of the file, not just the ends, and it makes the join inaudible: a few milliseconds of fade on each side of the cut stops the click you would otherwise hear when a waveform is chopped at a non-zero value. Selections can snap to the nearest zero-crossing for even cleaner joins.
The tool decodes your file to 32-bit floating-point samples, copies everything before the start marker and after the end marker into a new buffer, and applies a short linear fade (default 6 ms) to the last samples before the cut and the first samples after it. Because it edits raw samples rather than re-encoding first, the edit is sample-accurate; only the final download step encodes to MP3 or WAV.
If Snap to zero-crossings is on, each marker is moved up to 8 ms to the nearest point where the waveform crosses zero, so the two sides meet at the same level — the technique professional editors use to avoid pops.
Cut coughs, stumbles, long ums and off-topic tangents out of an interview before publishing.
Remove an intro, a verse or a skit to make a radio edit, or cut a track down to the part you love.
Take out private details or dead air before sharing a recording.
Delete retakes from a narration track before syncing it to the picture.
| Edit precision | Sample-accurate (1 sample ≈ 0.02 ms at 44.1 kHz) |
|---|---|
| Join smoothing | 0–50 ms linear fade, default 6 ms |
| Internal format | 32-bit float — no quality loss until export |
| Max file | Limited only by your device’s memory; 1–2 hour files work on desktops |
| Output | MP3 (96–320 kbps) or WAV (16/24/32-bit) |
No. Edits are made on decoded audio. The only loss is the final MP3 encode — choose WAV for a lossless result.
Cut one section, download or keep working with the result, then load it again for the next cut — or use the Splitter to divide a file into parts and the Merger to join the ones you want.
Cutting removes the selected part and keeps the rest; trimming keeps the selected part and discards the rest.
Press Reset to restore the default selection, and the Original tab always keeps your source untouched.
Yes. There's no sign-up, no watermark and no limit on how many files you cut.
No. Everything runs locally in your browser using the Web Audio API — your file never leaves your device.
The Cutter removes the section you select and keeps the rest. The Trimmer does the opposite — it keeps the section you select and discards the rest.
You can open MP3, WAV, M4A, OGG and FLAC files (anything your browser can decode). Export is available as WAV or MP3.
This tool runs entirely in your browser using the Web Audio API. Nothing is uploaded, stored or shared — there is no server to send your file to, so it works offline once the page has loaded.
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