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Audio Trimmer

An audio trimmer lets you cut an audio file down to just the part you want by choosing a start and end time. It decodes the audio with the Web Audio API in your browser, exports the selection as a WAV file, and never uploads your audio anywhere.

How to Use the Audio Trimmer

  1. Select the audio file you want to trim.
  2. Set the start and end time of the section to keep.
  3. Preview the selection if you like.
  4. Export and download the trimmed clip as a WAV.

Frequently Asked Questions

Which audio formats can I load?

Any format your browser can decode, including MP3, WAV, M4A and OGG. The trimmed output is exported as a WAV file.

Is my audio uploaded?

No. Trimming uses the Web Audio API locally, so your file stays entirely on your device.

Why is the output a WAV file?

WAV is uncompressed and can be produced accurately in the browser without extra encoders, guaranteeing a clean, lossless cut. You can compress it to MP3 afterwards if needed.

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