Cut dead air from videos and podcasts right in your browser. No uploads, no accounts, no waiting.
Everything you need to clean up your audio timeline — no software install, no account, no nonsense.
Voice-aware RMS analysis detects silence with adjustable threshold, minimum duration, and padding controls.
Files are processed entirely on your device using WebAssembly. Nothing is uploaded. Ever.
Pan, zoom, click, drag — edit silence regions visually just like a professional NLE.
Preview your edits in real-time with the skip-silence toggle before exporting.
MP4, MOV, MKV, WebM, AVI, MP3, WAV, OGG, M4A, FLAC — input and output in the same format.
Delete, Ctrl+Z undo, double-click toggle, spacebar play — designed for speed.
No installs, no signups, no tutorials needed.
Drag a video or audio file into the app. Supports all major formats up to 2 GB.
Hit "Detect Silence" and fine-tune regions on the interactive timeline. Preview with skip-silence playback.
Click export and download your cleaned file in the same format — silence removed, content preserved.
SilentCut is free and open source. If it saves you time, consider supporting its development.
Yes, completely. SilentCut is free and open source. There are no hidden costs, no premium tiers, and no feature gates. If you find it useful, you can optionally support development through donations.
No. Everything runs locally in your browser using WebAssembly (FFmpeg.wasm). Your files never leave your device — not even temporarily. There are zero network requests for processing.
Video: MP4, MOV, MKV, WebM, AVI. Audio: MP3, WAV, OGG, M4A, FLAC. The output is always in the same format as your input — no forced conversions.
The current limit is 2 GB per file. Since processing happens in your browser's memory, larger files may require more RAM. For best results, use files under 500 MB.
After the initial load (which downloads the FFmpeg engine ~30 MB), the app works fully offline. The engine is cached by your browser for subsequent visits.
Chrome (recommended), Edge, and Firefox on desktop. Safari has limited WebAssembly support. Mobile browsers may work but are not officially supported due to memory constraints.
Yes. You can control the silence threshold (dB), minimum silence duration (ms), and padding around cuts (ms). You can also manually add, remove, or resize cut regions on the interactive timeline.
No signup. No download. Just open and start editing.
Open SilentCut — Free