Can I cut out the middle and keep both ends?

Yes. Select the part you want gone and choose the option that says the selection is what you want removed. The two remaining pieces are joined where the cut was.

Why does my trimmed file click at the edit?

Because the cut landed partway through a waveform, which leaves a sudden jump in the signal. Turn on the fade option and the click goes with it.

How precise are the times?

To the sample. A typed time is converted to a sample position, so at 44,100 Hz the smallest step is about 23 microseconds. Dragging is as precise as the pixel you drop on, which at a typical width is a few milliseconds.

Is the audio uploaded anywhere?

No. The file is decoded and cut inside this page, and the result is handed back as a download without any request being made.

Trim Audio

Drag across the waveform to mark a section, then keep it or cut it out. The times can also be typed in, down to a hundredth of a second, when the edit has to land exactly.

Choose an audio file or drop it hereMP3, WAV, FLAC, OGG or M4A, up to 100 MB.

Runs entirely in your browser. Your files are never uploaded.

How to use Trim Audio

1Choose an audio file, or drag it onto the box.
2Drag across the waveform, or type the start and end times.
3Say whether the selection is what you want kept or what you want gone.
4Save the result as MP3 or WAV.

Choosing the section

The waveform is drawn from the real samples rather than a summary, so a gap between sentences or the start of a chorus is visible as a shape. Dragging across it sets the selection, and the two time fields show where it lands and accept a typed correction.

Times can be written as seconds, or as minutes and seconds with a colon. Both are read the same way, so 95 and 1:35 pick the same point.

Why there is a fade option

A cut made where the waveform is not crossing zero leaves a step in the signal, and a step is a click. It is the most common complaint about trimmed audio and it has nothing to do with the format or the editor.

The fade option puts ten milliseconds of ramp at each edge of the cut, which removes the click and is far too short to hear as a fade. Turn it off when you need the samples untouched, for example when the piece will be joined back to something that ends at the same point.

What a trim costs the audio

Saving as WAV copies the samples straight out, so nothing is lost. Saving as MP3 encodes them again, which is a second lossy pass if the source was already MP3.

For a ringtone or a clip to send someone, that second pass is inaudible at 192 kbps and the smaller file is worth it. For a master you will edit again, save WAV.

Limits

One section at a time. Cutting several pieces out means saving, loading the result and going again.
MP3 output is re-encoded. Trimming an MP3 without re-encoding is possible at frame boundaries, which is a different tool.
100 MB per file, and 30 minutes of audio.
Fades are linear and fixed at ten milliseconds. Longer fades for a musical ending are not offered yet.

Frequently asked questions

Can I cut out the middle and keep both ends?: Yes. Select the part you want gone and choose the option that says the selection is what you want removed. The two remaining pieces are joined where the cut was.
Why does my trimmed file click at the edit?: Because the cut landed partway through a waveform, which leaves a sudden jump in the signal. Turn on the fade option and the click goes with it.
How precise are the times?: To the sample. A typed time is converted to a sample position, so at 44,100 Hz the smallest step is about 23 microseconds. Dragging is as precise as the pixel you drop on, which at a typical width is a few milliseconds.
Is the audio uploaded anywhere?: No. The file is decoded and cut inside this page, and the result is handed back as a download without any request being made.