A private silence remover that works like an offline web app.
Detect and cut dead air from your recordings without uploading anything. Unsilence runs FFmpeg entirely inside your browser tab, so processing behaves like an offline app — your video never reaches a server.
Unsilence Media Studio
Select a video file to run browser-native WASM utilities
Click or drag & drop video file here
Supports MP4, MOV, WebM, AVI, MKV (100% Client-side)
video.mp4
0.0 MB · Duration: --:--
Silence Remover FAQ & Guide
How does the automatic video silence remover work?+
Unsilence uses browser-native FFmpeg WebAssembly to parse the audio waveform of your video file. It detects silent portions below a configurable decibel threshold and automatically trims them out into a single seamless output video.
Can I customize the silence sensitivity?+
Yes! You can adjust the Decibel (dB) threshold (-60 dB to -10 dB) and the Minimum Silence Duration (0.1s to 3.0s) to fit your exact audio recording levels.
Are my video files uploaded to a server?+
No. 100% of the video processing happens locally on your computer inside your web browser. Your private videos never touch external servers.
Does the silence remover work like an offline app?+
Once the page loads, yes — Unsilence behaves like an offline web app for processing: silence detection and trimming run entirely inside your browser via FFmpeg WebAssembly, with no data sent back and forth to a server while you edit.