Remove background noise from your video
Clean up hiss, hum and room noise from your audio. Pick a strength and get a cleaner track in seconds.
How to remove background noise from a video
- 1
Import your video
Drop your file. It stays on your device, nothing is uploaded.
- 2
Pick a cleanup strength
Choose light, medium or strong depending on how noisy the recording is.
- 3
Get your MP4
The picture is untouched, only the audio is cleaned, so processing is fast.
Clean audio. Now polish the rest.
Montaj takes it further: auto subtitles, silence removal and smart trims, all on-device, never uploaded.
Frequently asked questions
How do I remove background noise from a video for free?
Import your video, pick a cleanup strength and click “Remove background noise”. The audio is cleaned entirely in your browser, no account, no watermark, no fee.
Is my video uploaded to a server?
No. Noise removal runs entirely in your browser with ffmpeg.wasm. Nothing is sent anywhere.
Does this affect my video quality?
No. Only the audio track is re-encoded; the picture is copied as-is, so there's no quality loss on the video.
Which strength should I pick?
Start with Medium. Use Light for subtle room tone, or Strong for fans, AC or noisy environments. Very strong settings can slightly thin out voices.
What if my video has no audio track?
There's nothing to clean, so the tool tells you the video has no audio.
Is this a background noise remover or does it change the video?
It's a background noise remover for the audio track only, the picture is untouched. Use it any time you need to remove noise from a video without re-shooting it.
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