Audio Trimmer: Cut MP3, WAV and M4A Files Online

Select the part of a recording you want to keep, or cut an unwanted section out of the middle. The file is processed in your browser and never leaves your device.

Free Online Audio Cutter

Trim the start and end of a recording, save a short clip, or remove a cough or a mistake from the middle, without installing an editor.

What Can You Do with the Audio Trimmer?

  • Keep a selection: drag the handles around the part you want and everything outside it is removed. Use this to cut silence from the start and end or to save a short clip.
  • Remove a selection: mark an unwanted section, such as a cough, a mistake or a long pause, and the parts before and after it are joined together. A 10-millisecond crossfade at the joint prevents a click.
  • Set exact times: type the start and end to a tenth of a second if dragging isn’t precise enough.

Tips for Clean Cuts

Cut where the waveform is quiet, in a pause between words or just before a beat, and the edit will be hard to hear. Press Play to check: in Keep mode the selection is looped, and in Remove mode playback starts a few seconds before the cut and jumps over it, so you hear exactly what the result will sound like. For a smooth beginning or ending, add a fade afterwards with the Audio Fade Tool.

Who Is It For?

Podcasters removing mistakes and long pauses, musicians cutting loops and samples, video editors isolating a sound effect, and anyone who needs a shorter version of a recording. To put several clips together afterwards, use the Audio Joiner & Mixer.

How to Trim Audio in 3 Steps

Step 1

Open Your Audio

Choose a file from your device. MP3, WAV, FLAC and M4A work in all modern browsers; OGG depends on your browser.

Step 2

Mark the Section

Drag the edges of the highlighted area or type the start and end times, then choose whether to keep or remove it.

Step 3

Download as WAV

Click Download WAV to save the result to your device.

Select Audio File

Drag and drop a file here or choose one from your device. Supported formats: MP3, WAV, FLAC, M4A and OGG (OGG depends on your browser).

Your waveform will appear here after you choose a file.

Time: 00:00 / 00:00
What to do with the selection
Length of the result: --
Tip: Use headphones to hear the changes clearly. On a phone, make sure silent mode is off.

Export Trimmed Audio

The file is exported as a 16-bit WAV with the same sample rate and channels as the original.

Tip: Need an MP3? Export a WAV here, then convert it.
Audio Converter

Next Step

Add a fade-in or fade-out with the Audio Fade Tool, or put several clips together with the Audio Joiner & Mixer.

Frequently Asked Questions

How do I cut a part out of the middle of an audio file?
Choose Remove the selection, drag the highlighted area over the part you don’t want and click Download WAV. The audio before and after the selection is joined automatically, with a very short crossfade so the joint doesn’t click.

How precise is the selection?
You can type the start and end times to a tenth of a second. For most edits that is enough, because cuts placed in a short pause are not audible.

Will trimming reduce the audio quality?
No. The selected audio is copied without any processing and saved as an uncompressed 16-bit WAV file, so no lossy compression is added.