Choose an MP3, WAV, M4A or OGG file up to ten minutes long. The browser decodes it into raw samples, and the two sliders set the start and end of the region you want to keep. The length of your selection is shown as you drag, so you can hit a target duration exactly.
Audio Cutter That Works in Your Browser
Trim an audio file to the part you want and download it. The cut happens in your browser, so nothing is uploaded, nothing is re-encoded and it costs no credits.
Pick a file, drag the two handles to the section you want, and download it. The whole operation runs on your own device, so there is no upload to wait for and no copy of your audio sitting on anyone's server.
MP3, WAV, M4A or OGG · up to 10 minutes · stays on your device
01
How the Cut Works
The export is a 16-bit WAV at the sample rate of your source. That is a deliberate choice: cutting an MP3 and re-encoding it to MP3 loses quality a second time, because lossy compression is not idempotent. Writing WAV means the samples you keep are bit-for-bit the ones that were decoded, with no generational loss at all.
The trade-off is file size. A three-minute WAV runs to roughly thirty megabytes against three for an MP3. If you need a small file for sharing, cut here and convert once at the end, which costs you one encode instead of two.
02
Why There Is a Fade Control
By default the tool applies an eight-millisecond fade at each end of the cut. That is short enough to be inaudible as a fade and long enough to solve a real problem.
Audio is a waveform that swings above and below zero. If your cut point lands where the waveform is partway through a swing, the file starts or ends at a non-zero value, and the jump from silence to that value is a step change. A step change contains energy across the whole frequency spectrum, which your speakers reproduce as a click or a thump. It is the single most common reason a trimmed file sounds wrong.
Eight milliseconds removes it without softening anything you would notice. Raise the fade when you want an audible ramp, for instance when the cut lands mid-phrase and you want it to breathe rather than stop dead. Set it to zero only if you are cutting at a true silence and want the samples untouched.
03
Working Precisely
The sliders step in hundredths of a second, which is finer than most musical decisions need: at 120 BPM a beat lasts half a second, so one slider step is a fiftieth of a beat.
Two habits make cuts land cleanly. Cut on a transient rather than between them, because the attack of a kick or snare masks the join far better than a sustained note does. And when you want a loop, make the end of your selection fall exactly where the next repetition would begin, not where the previous one ends; the difference is one sample but it is audible as a stutter when the loop repeats.
If you need to know the tempo in order to work out where the beats fall, the key and tempo finder on this site reads both from the same file, and the BPM tapper measures tempo by ear when you have no file to analyse.
04
What People Trim Audio For
The most common reason is length limits. Ringtones, alarm sounds, social video soundtracks, podcast intros and competition entries all come with a maximum duration, and trimming is faster than re-exporting from a project.
Musicians cut a phrase out of a longer take to practise against, or isolate the eight bars of a solo they are learning. Producers clip a sample out of a record before importing it. Teachers pull the single passage they want to play in class rather than scrubbing for it live.
Podcast editors trim dead air from the start and end of a recording, which is usually the first edit any interview needs. People preparing speeches or presentations cut a music bed to the exact length of a slide.
It is also the right first step before any of the other tools here: trimming a ten-minute file down to the section you care about makes transcription, key detection and separation both faster and more accurate, because none of them have to deal with silence or applause.
05
Nothing Is Uploaded
Online audio cutters normally send your file to a server, cut it there and give you a download link. This one does the work in your browser using the Web Audio API, so the file is read from your disk and never transmitted.
That matters in a few concrete situations. Unreleased material and client work never touch third-party infrastructure. There is no retention policy to read, because there is nothing stored to retain. Large files start instantly instead of waiting on an upload. And it works with no connection at all once the page has loaded.
The limit is memory rather than bandwidth: decoded audio is held in RAM, so very long files on a low-memory phone may fail where a laptop handles them without noticing. The ten-minute cap is set with that in mind.
06
Audio Cutter Questions
Is my file uploaded?
No. The cut runs in your browser and the file is read directly from your device. Nothing is sent to a server, which is why there is no upload bar and no credit cost.
Why is the download a WAV and not an MP3?
Re-encoding an MP3 to MP3 loses quality a second time. Exporting WAV keeps the samples exactly as decoded. If you need a small file, convert once after cutting rather than twice.
Why does my cut click at the edges?
It should not, because an eight-millisecond fade is applied by default. If you set the fade to zero and cut where the waveform is not at zero, the step change produces a click. Put the fade back.
How precise can I be?
The sliders move in hundredths of a second. At 120 BPM that is one fiftieth of a beat, which is finer than any musical edit needs.
Can I cut out the middle and join the two ends?
Not in one pass. This tool keeps one continuous region. Export the two parts separately and join them in an editor.
What is the length limit?
Ten minutes. Decoded audio is held in memory, and the cap keeps the page from running out on phones. Trim a longer file in an editor first.
Does it work offline?
Yes, once the page has loaded. Nothing about the cut needs a connection.