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Audio Trimmer

Keep just the part of a song or recording you need, add a fade in or out, and save it as MP3 or WAV without uploading it.

Runs locally in your browser – your data is not uploaded

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About the Audio Trimmer

The audio trimmer cuts out the part of a sound you want to keep: the chorus of a song for a ringtone, an answer from an interview, or the start of a long voice recording. It works with MP3, WAV, M4A, OGG and FLAC files, and with the sound of a video.

A waveform shows where the loud and quiet parts are. Set the start and the end with the handles or by typing the times, listen to the part, and add a fade in or fade out so it does not start or stop abruptly. Save it as MP3 or as lossless WAV.

Everything happens in your browser. The file is not uploaded, so private recordings stay on your device.

How to use it

  1. Choose an audio file (MP3, WAV, M4A, OGG, FLAC) or a video, or drop it on the page.
  2. Move the handles under the waveform or type the start and end, for example 1:23.5.
  3. Press Play the part to listen, and choose a fade in or fade out if you like.
  4. Choose MP3 (128, 192 or 320 kbps) or WAV.
  5. Press Save the part, then listen to the result and press Download.

Features

  • Waveform: See the loud and quiet parts of the sound and pick the part at a glance.
  • Exact times: Type the start and end to the millisecond, or move the handles.
  • Fade in and out: Linear fades of 0.5 to 5 seconds at the start and the end.
  • MP3 or WAV: MP3 at 128, 192 or 320 kbps, or WAV without loss.
  • Audio and video files: MP3, WAV, M4A, OGG and FLAC files, and the sound of MP4, MOV, WebM and MKV videos.

Examples

Ringtone

Keep 30 seconds of a song with a 2-second fade out and save it as MP3.

Interview clip

Cut one answer out of a long recording to share it.

Podcast intro

Trim silence from the start of a WAV recording and keep it lossless.

Limitations and notes

  • Your browser must be able to decode the sound (WebCodecs): a recent Chrome or Edge, Safari 26 or later, or Firefox 130 or later. Older versions of Safari can still trim WAV files. Some formats, such as OGG in Safari, may not open.
  • Saving as MP3 encodes the sound again, so an MP3 loses a little quality each time; WAV keeps every sample.
  • WAV keeps the bit depth of WAV and other PCM sound, so 24-bit and 32-bit float recordings stay as they are; the sound of other formats is saved as 16-bit WAV.
  • One part is kept per save; to remove a part from the middle, save the two parts separately.
  • The result is held in memory until you download it; very long WAV files can be large.

Frequently asked questions

How do I cut an MP3?

Choose the MP3 file, set the start and end, and press Save the part. Choose MP3 to keep it small.

Can I make a ringtone?

Yes. Keep up to about 30 seconds, add a short fade out and save it as MP3.

Can I cut the sound of a video?

Yes. Choose the video file; only its sound is kept.

Why can I not hear the part?

Some browsers cannot play every format directly. The part can still be saved; listen to the result instead.

Is my file uploaded?

No. The sound is cut in your browser and saved straight to your device.

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