Free Tool

Silence Detector

Upload any video or audio file and see every silent gap visualized on a waveform. Nothing is uploaded - it all runs in your browser.

Drop a video or audio file here

or click to browse - MP4, MOV, MP3, WAV, M4A

Processed locally in your browser. Nothing is uploaded.

Silence threshold-40 dB

-60 dB (detect faint sounds)-20 dB (only true silence)

Remove silence automatically

Blitzcut detects and removes every silence gap in one tap - on iPhone and Mac. No manual scrubbing required.