Ssakdduk
Free

Ssakdduk

Remove silent gaps

Finds the stretches where nobody is talking, removes them and joins the rest — the jump cut you would otherwise make by hand in a lecture or interview recording. It detects first and shows you what it found before anything is cut.

Processed in
Your browser
Server upload
None
Formats
MP4 · MOV
Best under
20 min · 1080p

Drag & drop MP4/MOV or click to browse

Files stay in your browser — never uploaded

Recommended: under 20 min / 1080p — on iPhone prefer Most Compatible (MP4) — larger files may take several minutes

FAQ

Before you start

01
What counts as silence?
By default, anything quieter than -30dB lasting 0.6 seconds or more. If breaths and word endings get clipped, lower the threshold to -40dB; if quietly spoken parts get cut, raise it. A 0.15s margin is kept at both ends so speech does not get clipped.
02
Can I see what will be cut first?
Detection and cutting are separate steps. Detecting tells you how many gaps were found and how much time they add up to, and you can adjust the settings and detect again.
03
What happens to my original file?
It is untouched. The result comes back as a new file, and nothing was uploaded in the first place.