Automatically detect and remove silent parts from video or audio files. Tune sensitivity, preview what will be cut, then export. Everything runs in your browser.
Auto-detect
RMS-based silence detection with tunable sensitivity
Preview
See exactly what will be cut before applying
Export
Render the result and download as MP4
This tool scans your video or audio waveform, finds the silent stretches, and cuts them out automatically. You control the sensitivity threshold and minimum pause length, preview exactly which regions will be removed, and export the tightened result as MP4. Everything runs in your browser, so nothing is uploaded.
Cutting dead air is the fastest way to make talking-head videos, podcasts, tutorials, and voiceovers feel professionally edited. What normally takes an hour of manual timeline work happens in seconds, and it is free with no watermark.
Drag in a video or audio file. The tool builds a waveform so you can see the quiet parts at a glance.
Adjust the silence threshold and minimum gap. Detected regions highlight on the waveform for review before you commit.
Remove the silent regions in one click, preview the tightened cut, and export as MP4 on your device.
Yes. Detection, editing, and export are free with no watermark and no signup.
No. The waveform analysis and the edit both run locally in your browser. Private recordings stay private.
Yes. You set the loudness threshold and the minimum silence duration, so you can trim only long pauses or tighten everything down to broadcast pacing.
Detected regions are shown on the waveform before anything is removed, so you can loosen the threshold if a cut feels too tight, then re-run detection instantly.
Talking-head videos, podcasts, lecture recordings, tutorials, and voiceovers: any content where dead air makes the pacing drag.
Yes. Open the exported file in the VideoCaptions.AI caption builder to add animated word-by-word captions for Reels, TikTok, or Shorts.