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Audio Trimmer | Cut Audio and Export WAV

Audio Trimmer | Cut Audio and Export WAV

Choose an audio range to the millisecond from browser-decodable input such as MP3, preview it, and download the selected segment as 16-bit PCM WAV.

Focus mode
Audio trimmer
Upload an audio file, select a section from its waveform, and save the trimmed audio as WAV. Everything stays in your browser and is never sent to a server.

Choose an audio file to display its waveform here.

Supported formats: MP3, WAV, OGG, M4A, FLAC, and other browser-decodable formats · 96 MiB input · 192 MiB estimated decoded-memory limit

The output is a 16-bit PCM WAV using the sample rate and channel count produced by the browser decoder.

Key features

  • Displays a waveform for audio formats the browser can decode.
  • Sets precise start and end times with direct input in 0.001-second steps.
  • Previews only the chosen segment and shows playback position.
  • Exports 16-bit PCM WAV while retaining the decoded channel count and sample rate.

How to use

  1. Choose the audio file you want to trim.
  2. Set the start and end on the waveform or in time inputs, then preview the selection.
  3. Save the trimmed segment as a WAV file.

Examples

  • Save a quoted moment from a recording

    Enter exact start and end times for an interview or meeting, then download only that portion as WAV.

  • Check a cut before sharing it

    Preview the selected waveform range to make sure the clip begins and ends where you expect.

Privacy

Audio decoding, waveform generation, playback, and WAV encoding run in your browser; the file is not sent to a server.

Requirements

The Web Audio API is required. MP3, WAV, OGG, M4A, AAC, FLAC, WebM, and other input support depends on the browser decoder. Before full decoding, the tool limits encoded input to 96 MiB and estimated decoded audio to 192 MiB.

Common questions

Can I export an MP3 after trimming?
MP3 and other formats may work as browser-decodable input, but this tool only downloads 16-bit PCM WAV.
How precise are the time controls?
You can type the start and end times in increments of 0.001 seconds.

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