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Serve from a local server — not file://

Browser security blocks FFmpeg.wasm when opened directly as a file. Run one of these commands in the same folder as the HTML file:

npx serve . python3 -m http.server 8080

Then open http://localhost:8080 (or the URL shown in terminal).

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Drop your video or audio here

Your files never leave your browser — 100% private, 100% local

MP4 MOV MKV WebM AVI MP3 WAV OGG M4A FLAC
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Loading FFmpeg audio engine...
Original
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Silence
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Final
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Time Saved
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Audio Timeline
Voice / Sound
Silence (will be cut)
Not analyzed yet
Scroll Pan ⌘+Scroll Zoom Click Select Del / X Remove ⌘Z Undo Dbl-click Toggle Space Play/Pause
0:00 / 0:00
Skip Silence
Detection Settings
Silence Threshold -40 dB
Lower = more aggressive cuts
Min Silence Duration 500 ms
Short silences are ignored
Padding Around Cuts 100 ms
Buffer kept before/after words
Privacy Guarantee
🔒Files never leave your device
☁️Zero cloud processing
📡Works fully offline
⚡SharedArrayBuffer optimized
🎙️Voice-aware silence detection
Processing...
Initializing...