Remove background noise from video

The normal route to clean audio in a video is a chore: open a video editor, detach the audio, export it as a WAV, run it through a noise-removal tool, import the cleaned file, line it up against the original, mute the old track and export the whole video again. Four programs and a full re-export for what is, in the end, a swap of one audio stream.

The re-export is the part that actually costs you something. Every time a video is re-encoded it goes through another round of lossy compression, so fine detail, gradients in the sky and fast motion come out slightly worse than they went in — even when you change nothing about the picture at all.

CleanGrab skips that entirely. It takes the audio out of your file, cleans it, and writes it back into the same container while copying the video stream across untouched. The picture is never decoded and re-encoded, so it cannot degrade. What comes back is your video, at your resolution, at your bitrate, with a quieter soundtrack.

Everything here is built around one job, to clean audio in video without touching the picture underneath it. Anyone who only wants to clean up audio in video and get back to editing skips the whole detach-and-reimport routine described above. A single upload is enough to clean video audio recorded in a noisy office or on a busy street. Because only the audio stream is touched, it becomes possible to clean audio from video without re-encoding a single frame of picture.

The model is trained on the human voice, so it is at its best when someone is talking and something steady is humming away underneath. In practice that covers most of what ruins home and office footage:

• Air conditioning and fans — the constant whoosh in an office, a bedroom or a server room, including the laptop's own fan spinning up next to the microphone.
• Electrical hum and buzz — the low 50 or 60 Hz drone from a ground loop, a cheap cable or a dimmer switch on the same circuit.
• Traffic and street noise — the low rumble of cars and distant engines behind an outdoor piece to camera.
• Hiss and static — the mush that comes from a cheap microphone, or from a recording made too quietly and then turned up.
• Keyboard clatter and mouse clicks — the typing under a screen recording or tutorial.
• Room tone — the general noise floor that makes footage sound like it was filmed in a hallway.

Full detail on each noise type and which strength suits it is in the guide to removing noise from recordings. To remove bg noise from video, drop the file into the box above — the audio is cleaned and stitched back into the same container in one pass. Looking for a video noise remover with nothing to install? This page runs in the browser, and as a background noise remover for video it stays free every run, not a metered trial. Free video noise removal is what runs on every pass here, with no daily cap and no watermark on the file you download.

This page exists so people can remove background noise from video free online and skip the account step entirely. Fans, hum and traffic are the usual reason people come here to remove background sound from an otherwise usable take. The strength setting exists because not every clip needs the same amount of work to reduce noise in video before it sounds right. The Balanced setting is the default way to clean background noise from video without over-processing the voice underneath it. No local software gets installed to remove background noise from video online at any point in the process, since it happens on a server rather than in the browser.

It behaves like a noise cancelling video pass that runs once, on our server, over the whole file. The model behind it does video noise reduction the same way whether the source is a phone clip or a screen recording. There is no paid tier that gates the cleanup itself, so it works as a background sound remover free of charge on every file under the 45-minute cap. This tool is built to remove background noise from video online free every time, not as a limited trial that later asks for payment. Nothing gets installed for any of it, since the whole noise reduction online process runs on our server, not on your machine.

Used as a white noise remover it is tuned for the steady hiss sitting under speech, rather than sudden or musical sounds. Used as a bg noise remover for interview footage, it keeps both voices intact while the room tone underneath them drops away. It behaves less like a filter and more like a noise eraser that has already learned what a human voice sounds like.

The short version of how to take background noise out of a video is upload it, wait about a minute, and download the cleaned file. People often want to take out background noise in video recorded at a live event, where the crowd is louder than the speaker. The same model handles noise removal from video regardless of which container format the file arrives in. The answer to how to remove static from video shot on an older camera or a cheap lapel mic is the same upload as anything else.

There is no signup wall in front of the noise reduction online free service, and no watermark stamped on the result. There is no cap on repeat visits either: free background noise removal from video stays available up to the daily file limit, not a one-time trial. It stays a single-purpose noise reduction tool built for this one job rather than bundled into a larger video editor.

Some things are not a noise layer at all, and it is worth knowing which before you upload:

• Heavy echo and reverb. The reflections are the voice, arriving late. Removing them means separating a sound from delayed copies of itself, which is a harder problem than pulling out a steady hum. Light room echo is reduced; a church hall is not.
• Someone else talking in the background. A second voice is speech, and the model is built to preserve speech. It will not reliably pick out only the person facing the camera.
• Music under the dialogue. Background music is treated as something to suppress, and it often comes out mangled rather than removed cleanly. If your video has a music bed, clean the dialogue first and add the music afterwards. To pull a song apart into separate instruments, that is a different job — StemGrab's stem splitter does that one.
• Clipping and distortion. If the audio was recorded far too loud, the peaks were flattened at the moment of recording and that information is simply not in the file. Nothing can reconstruct it.

When almost no clear speech is found, CleanGrab tells you instead of handing back an empty-sounding file. That warning usually means the input was music, near-silent, or so noisy that the voice never really made it in.

Start on Balanced and listen to the before/after in the browser before downloading anything. If a layer of noise is still sitting there, go to Strong. If the voice has started to sound thin, hollow or slightly underwater, that is the model working too hard — drop to Gentle, which keeps more of the original character of the voice.

Consistency matters more than perfection here. If you are cutting several clips together, run them all at the same strength: viewers notice a noise floor that appears and disappears between cuts far more than one that stays quietly present throughout.

If you are cleaning a long recording of a meeting, the Zoom and Teams section of the main guide covers the specific problem of calls where each speaker sits in a different acoustic space.

When the question is how to edit background noise in video without opening an editor first, uploading the file here is the whole answer. This page answers how to remove noise from video specifically, not just from a standalone audio file — the upload box above takes the video directly. Dropping the file into the box is the fastest way to clean up sound on video shot with a phone or a webcam. The most common question here is how to reduce background noise on video without also flattening the voice, and Balanced is the setting built for that.

For how to clean up sound in a video recorded during a windy walk-and-talk, expect the steady rumble to drop while the voice stays. The process for how to clean up sound on a video does not change based on which container format was uploaded. Nothing about the free background sound remover here changes on a second or third use in the same day, short of the daily file limit. Anyone looking for how to reduce noise in video without learning an audio editor first can stop at this page.

The fastest way to answer how to get background noise out of a video is to try Balanced first and listen to the preview before downloading. Screen recordings are a common case for how to clean up video audio before publishing them, since a laptop fan often sits right next to the microphone. The answer to how to clean up audio on a video stays the same across MP4, MOV, MKV and WEBM files.

A search like remove background noise from video capcut, noise reduction video software, or plainly how to remove background noise in video often means the audio job this page does — CapCut's own noise-removal toggle does roughly the same thing, one app earlier in the pipeline. But in Premiere Pro and DaVinci Resolve, "video noise" more often means visual grain in the picture, a different problem entirely from the audio hum this page removes; check which one you actually mean before reaching for a video noise filter. DaVinci Resolve's actual audio noise reduction lives on its Fairlight page rather than the color page. On a Mac, iMovie and GarageBand each have a basic noise-reduction slider too, though neither separates a voice from the room behind it as cleanly as a dedicated model.

On a phone specifically — how to remove background noise from video on iPhone included — the browser version of this page works the same as desktop: upload, wait, download, no app to install first. That's the whole answer to how to remove background noise in a video, on any device: this page does the audio job, whichever editor you were about to open. For how to remove background noise from iphone video specifically, the browser upload works the same on an iPhone as it does on a desktop.