Silence remover and trimmer

This free silence remover cuts dead air out of a recording. Drop a file and it detects quiet regions, which you can tune with a threshold and a minimum length, or switch to manual trim to cut the start and end by hand. It shows how much was removed and the new length, then you download a WAV. Everything runs in your browser, nothing is uploaded.

In your browser
Drop an audio or video file
Detected silence is trimmed in your browser. Nothing is uploaded.
Choose file
Runs in your browser. Nothing is uploaded. This is a free tool from Vocast.

How it works

1
Add your file

Drop an audio or video file. It is read on your device.

2
Tune the silence

Adjust threshold and minimum length, or switch to manual trim.

3
Download

Check how much was removed, then download the trimmed WAV.

Frequently asked

It measures loudness in short windows and marks regions quieter than your threshold that last at least the minimum length. Adjust both to fit your recording.

No. The audio is decoded and trimmed in your browser and never leaves your device.

Auto detects and removes many quiet gaps across the file. Manual lets you cut just the start and end by dragging handles.

A WAV of the trimmed audio. The original is untouched.

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Record with a live waveform, trim the ends with handles, and download as WAV or MP3.
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