Remove silence from video audio
Drop in a video and this free silence remover extracts its audio track, cuts the quiet gaps, and hands you a clean WAV — no sign-up, no upload, no waiting queue.
Mind the memory: videos are decoded entirely in your browser — nothing is uploaded, but decoding expands the audio track to raw PCM, many times the file size. Very long recordings can exhaust your device's memory and fail. Keep clips modest: a few minutes is comfortable, and around 20 minutes is a practical ceiling on typical computers. For longer videos, split them into parts or extract the audio first.
How video processing works
The audio track is extracted
Your browser reads the sound track from the video file locally — MP4, MOV and WebM are decoded on your device.
Silence is cut from the track
Quiet stretches longer than 100 ms are removed, keeping 0.05 s of pause on each side by default so words don't crash into each other.
Preview and download the WAV
Compare the original and new durations, play the cleaned audio, and save it as a WAV file. The video itself is not modified.
What happens to your video
Your video stays untouched
Only the audio track is read — the picture is never re-encoded and the video file never leaves your device. You get a new WAV audio file.
Output is audio, not video
The result is a 16-bit WAV at 44.1 kHz. Put it back into your video with the “replace audio track” function of your editor if you need it there.
Mind the sync
Cutting pauses shortens the audio, so replacing a video's original track shifts picture sync wherever silence was removed. Best when you only need the audio, or when you re-edit the video afterwards.
Made for voice video
Talking-head recordings, video podcasts, interviews and lecture captures work best. Music videos are a poor fit — removing the quiet parts changes the rhythm.
Tuning the cut
The advanced options above control the cut: the silence threshold decides what counts as quiet (−45 dB by default), minimum silence length protects short gaps (100 ms by default), and keep pause up to leaves breathing room around every cut (0.05 s by default). If a whole recording is quieter than the threshold, it is adjusted relative to that file's own loudness automatically.
Your video never leaves your device
Videos are large and private — so nothing is uploaded. The audio track is decoded and cut with the Web Audio API in your browser, and closing the tab erases everything. That also means long recordings depend on your device's memory rather than a server limit.
Frequently asked questions
Does it cut the video itself?
No. The tool processes the audio track only and gives you a WAV audio file. The picture is never modified — cutting silences out of the picture itself is a video-editor task.
Which video formats can I use?
MP4, MOV and WebM — anything your browser can decode. If decoding fails, extract the audio to a separate file first and use the audio silence remover.
Is there a length or size limit?
No upload means no server limit — but your device's memory is the real one. Decoding turns the video's audio into raw PCM, which is many times larger than the file itself: clips of a few minutes process comfortably, and around 20 minutes is a practical ceiling on typical computers. For longer recordings, split the video into parts or extract the audio first.
Will the cleaned audio stay in sync with the picture?
Not if you replace the video's original audio with it. Every removed pause shortens the track, so the picture would drift ahead. Use the cleaned track as standalone audio, or re-edit the video around it.
Will voices sound different afterwards?
No. Only quiet stretches are deleted — playback speed and pitch are never changed.
Where does my video go when I upload it?
Nowhere. The file is read locally in your browser; the audio track is decoded and cut on your device. Nothing is uploaded to any server.
Already have a plain audio file?
The audio silence remover handles MP3, WAV, M4A, OGG and FLAC directly — same engine, same settings.
Remove silence from audio →