Local waveform tool — nothing leaves this tab

Silence Cutter

Drop in an MP3 or WAV, set a noise floor and a minimum gap length, and it splices out the dead air. Zoom into either waveform and click anywhere to play from that point. All decoding and processing happens in your browser.

Drop audio file here, or click to browse

MP3, WAV, M4A, OGG — decoded by your browser's audio engine

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waveform detected silence will be removed click waveform to play from that point

waveform splice point click waveform to play from that point

Settings

Noise floor −40 dB

Min. silence length 400 ms

Padding kept at edges 100 ms

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Silent regions

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Time removed

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Original length

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New length

Export is written as WAV (16-bit PCM), which every browser can encode without an external codec library. WAV keeps full quality — re-compress it to MP3 afterward in any editor if you need the smaller file size.

made by @xsyanic using claude sonnet 5