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Audio Trimmer

Cut an audio file down to the section between two timestamps and save it as a WAV. Decoding, cutting and encoding all happen in your browser.

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Drop an audio file here or click to browse

MP3, WAV, OGG, M4A/AAC, Opus, FLAC or WebM audio, as long as your browser can decode it. The file is never uploaded.

The output is always an uncompressed 16-bit PCM WAV written from scratch here in the page, which is what keeps the cut sample accurate. Re-encoding a trimmed MP3 back to MP3 in the browser would cost a generation of quality, so instead the file gets longer per second but sounds exactly like the slice that was decoded.

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What Is Audio Trimmer?

The Audio Trimmer decodes an audio file into raw samples, keeps only the section you selected and re-encodes that section as a 16-bit WAV. Start and end points are exact numbers you can type, or set from the current playback position while you listen, so cutting a voice memo down to the useful ten seconds does not need a desktop editor. Because the cut happens on decoded samples rather than on compressed bytes, the edit point stays clean instead of landing on a partial frame.

Who Uses the Audio Trimmer?

Reviewers shorten a voice memo before sending it, producers prep a ringtone or an intro sting, and presenters trim the dead air off both ends of a recording.

How to Use the Audio Trimmer

  1. Choose or drop the audio file and let the duration, sample rate and channel count appear.
  2. Play it back while you set the start and end points, or type the timestamps directly.
  3. Press Trim and download the resulting WAV, checking the kept length in the stats.

Why Choose Our Audio Trimmer?

  • Sample-accurate cuts, so the edit point carries no codec artefact
  • Set points from live playback instead of guessing at seconds
  • Exports standard 16-bit PCM WAV that any editor or app will open

Try the Audio Trimmer above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.