Remove background noise from video
Drop the video in, get the same video back with the noise gone from the audio.
Last updated: October 2026
This is the fastest way to reduce background noise in video without opening an editor first.
No editor, no re-export, no account, and the picture is copied across untouched.
The cleaned file is the free file. No watermark, no trial length, no account: files up to 45 minutes. A pass adds loudness levelling and a heavier repair pass for rough recordings.
Your upload is deleted the moment the cleanup finishes. Want the strength control, or a video track cleaned in place? The full tool is on the home page.
Clean a recording, free →What we actually see
The single most common reason a file gets turned away from CleanGrab, across every tool on the site, is length: in the 31 days to 21 August our error log recorded a recording running past the 45-minute cap 8 times, the top entry in that log by count, ahead of every other rejection reason we track. It's a video-shaped problem more than an audio one: a video file carries picture as well as sound, so it's the format most likely to quietly cross that limit while filming without anyone timing it, a screen recording, a livestream replay or raw event footage most of all. If your export gets rejected here, trimming it under 45 minutes, or splitting it and running each part separately, clears it every time.
What it cleans up well
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. Drop the file into the box above and the audio is cleaned and stitched back into the same container in one pass, up to ten times a day.
Also called a noise remover, eraser or reduction tool
This page runs one noise cancelling pass over the whole video on our server, and the model works the same way on a phone clip as on a screen recording. It is tuned for steady sound under speech, such as hiss, hum, fans and white noise, rather than sudden or musical sounds. As a bg noise remover for interview footage it pulls the room tone down underneath the voices, and because it has learned what a human voice sounds like, it behaves less like a filter and more like an eraser for everything else.
Free, online, no install
This page exists so you can remove background noise from video free online, with no account step anywhere. Remove background noise from video online and the work happens on our server, so a ten-year-old laptop cleans a 4K clip as quickly as a new one does. Remove background noise from video online free is the whole tool rather than a trial: nothing about the cleanup itself sits behind a paid tier. Free video noise removal leaves your resolution and frame rate untouched, because only the audio track is rebuilt. Free background noise removal from video puts no watermark on the result. As a free background sound remover it treats hum, hiss and traffic the same way. It is a background sound remover free of charge for every file under the daily cap. The noise reduction online runs server-side with nothing to install, and noise reduction online free means no card at any point.
However you ask for it
Remove bg noise from video uses the same upload box as everything else on this page. Reduce noise in video on the Balanced setting first: it is the default because it lifts the floor without hollowing out the voice underneath. Clean background noise from video recorded at a live event and the crowd falls further back than the speaker does. How to take background noise out of a video comes down to three steps: upload it, wait about a minute, download the cleaned file. Take out background noise in video shot outdoors and the wind rumble goes with it. Noise removal from video works regardless of which container format the file arrives in. How to remove static from video shot on an older camera or a cheap lapel mic? Same upload as anything else: it clears the hiss while the speech stays put.
Read more
Asked as how to remove noise from video, or as how to reduce noise in video, the answer starts at the same slider. Indoors, how to reduce background noise on video usually comes down to the laptop fan sitting next to the microphone during a screen recording. No editor is involved, so how to edit background noise in video is answered by the upload box rather than a timeline, as the section below explains. With several speakers in the room, how to get background noise out of a video works best left on Balanced. For a podcast export, how to clean up video audio is the same pass at a higher bitrate. How to clean up audio on a video call recording mostly means the echo, which this reduces as well. On a windy walk-and-talk, how to clean up sound on video drops the steady rumble while the voice stays. How to clean up sound in a video with music underneath thins the music along with the noise around it. How to clean up sound on a video longer than an hour still runs in a single pass with a paid pass; free files go up to 45 minutes.
Related: Clean Up a Noisy Voice Recording Online: Free MP3 or WAV.
Why a video editor is usually the long way round
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.
Where it struggles
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. What Voice only can and can't do here: isolate voice from background noise.
- Animal sounds, like barking or birdsong. Barks and bird calls share pitch and rhythm with speech, and the normal settings are built to keep anything that sounds like a voice: they come out quieter, but not always gone. Choose Voice only for these. In our tests it turned a barking dog down by 14 to 80 dB depending on the recording, mostly far more than the default setting, without losing words. That makes most of it disappear, but not on every recording. With two people talking over each other it can lose or swap the voice. No setting reliably separates two voices; try the standard clean-up and listen to the result. More on the page to remove dog barking from video.
- 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.
Getting the best result out of your footage
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. CleanGrab is designed for speech, so birdsong and other nature sounds may be reduced as noise. There is no mode that isolates birdsong or keeps only a chosen nature sound. Changing the strength does not add that capability.
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.
CapCut, Premiere and phone editors: a different kind of "noise"
CapCut's own noise-removal toggle does roughly the same audio job one step earlier in your editing, and so do the noise tools in other editors. One thing to check first: in Premiere Pro and DaVinci Resolve, "video noise" more often means visual grain in the picture, a different problem from the audio hum this page removes. DaVinci Resolve's audio noise reduction lives on its Fairlight page, not the colour page. On a Mac, iMovie and GarageBand 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.
Working with an audio-only file instead of a video? The background noise remover for audio is the same engine without the video handling. Prepping the clip for YouTube specifically? See cleaning audio for a YouTube video.
After the noise is gone
Once the dialogue is clean, a transcript is usually the next thing you want: for subtitles, for a description, or for the searchable text version of a talk. ScribeGrab turns speech into text and subtitle files free, and labels who is speaking when there is more than one voice, which is what makes an interview or panel readable rather than one solid block of text.
Worth knowing
Do I get the video back, or just the audio?
You get the video. CleanGrab puts the cleaned track back into your original file, so what you download is a playable MP4, MOV, MKV or WEBM with the noise gone. The cleaned MP3 and lossless WAV are offered alongside it, for when you would rather do the mixing yourself in an editor.
Does it re-encode my video and lose quality?
No. Only the audio is replaced; the video stream is stream-copied straight across, which means the picture data in the file you download is bit-for-bit identical to what you uploaded. There is no second generation of compression, no softening, no change to resolution or frame rate.
Which video formats work?
MP4, MOV, MKV, WEBM, AVI and M4V. The file comes back in the same container it went in as. Audio-only files, MP3, WAV, M4A, FLAC, OGG, work exactly the same way, they simply come back as audio.
Can you remove background noise from a video?
Yes, when someone is talking and something steady sits underneath: fans, hum, hiss or traffic. A second voice or music under the dialogue is harder, because the model is built to keep speech.
When should I clean the dialogue, before or after adding music?
Before you add music, remove background sound from the dialogue, because a music bed is treated as noise and often comes out mangled.
Will it remove wind noise from outdoor footage?
Steady wind rumble under speech comes down only a little (about 0.4 dB in our synthetic test: artificial wind as loud as the voice, strongest setting), because it sits in the same low frequencies as the voice. Hard gusts that slam into the microphone and clip it are different: that is distortion rather than a noise layer, and no amount of noise removal brings back the syllables that were flattened. A dead-cat windshield on the mic prevents what software cannot repair.
Can it fix echo in a big empty room?
Only partly. Heavy echo and reverb are a genuinely different problem from background noise: the reflections are copies of the voice itself, not a separate layer to subtract. CleanGrab reduces light room echo and will not fully erase a very reverberant space. We would rather say that plainly than promise something the tool cannot do.
What happens to my video afterwards?
Your upload is deleted the moment it has been processed, and the cleaned file is wiped from the server within 45 minutes. Nothing is shared or used to train anything.
How do I remove background noise from a video for free online?
Drop the video into CleanGrab, from a laptop or a phone browser, and the cleaned file comes back as a playable video within a minute or two: no account, no watermark, no trial length, nothing to install. You can remove noise from video online free on every run. There is no need to strip the audio out first; MP4, MOV and similar files go in directly, and the cleaned track goes back into the same file. Here is how to remove background noise in video from a phone: open this page in its browser, upload the clip and download the result; no app is needed.
How do I remove background noise from a Zoom or Teams call recording?
Upload the recording (MP4, MOV or audio-only) to CleanGrab; the hum, echo and room noise are filtered while the voices are kept, and the cleaned file comes back in a minute or two.
Can I remove background noise from a podcast recording?
Yes: MP3, WAV and M4A all work; upload the file and steady hiss, hum or fan noise is filtered out with the speech left intact.
Is removing background noise from a video different from removing it from an audio file?
The noise removal is identical: CleanGrab filters the sound the same way in both cases, and Balanced is tuned to keep the voice natural while the room around it disappears. The only difference is that with a video the cleaned audio is put back into the original container, so you download a video rather than a separate audio file.
Can I remove white noise or wind noise from a video specifically?
Yes to both, with the usual limit: remove white noise from video and remove wind noise from video works best on steady hiss, and wind rumble is only reduced a little; hard gusts that clip the microphone are distortion, not noise, and nothing can rebuild what got flattened at the moment of recording.
Is this AI background noise removal, or a basic filter?
A trained AI model, not a fixed filter: it recognises speech and separates it from everything steady humming underneath, which is why the voice keeps its natural tone instead of sounding processed. Using a video noise remover that re-encodes your footage costs picture quality; this one only replaces the audio and copies the video stream across untouched.
Can it clean noise from an instrument in a video?
Not really: this model is built to keep speech and remove everything steady behind it (hum, hiss, fans, crowd noise); it isn't a stem separator, so it won't isolate or remove one instrument from a mix. For splitting a song into instrument stems, see StemGrab.
Is there a file size limit, like a 2GB cap?
There are two limits: 45 minutes and 1 GB per file on the free tier, up to 3 files at once. A long, high-bitrate video can pass 1 GB before it reaches 45 minutes; export it at a lower bitrate first.
Can it remove other people talking in the background of a video, or remove grain from the picture?
Not reliably for voices: a second voice is speech, and the model is built to preserve speech, so it will not pick out only the person facing the camera. And only audio noise is cleaned: the video stream is copied across untouched, so grain in the picture stays.
Is there free software to remove video background noise on Windows 11?
You do not need software. CleanGrab runs in the browser, so on Windows 11, a Mac or a phone there is nothing to install: open this page, drop in an MP4, MOV, MKV, WEBM, AVI or M4V file and download the cleaned video. It is free with no account and no watermark, for up to 10 clips a day, each up to 45 minutes and 1 GB. It is not an offline tool: the file is uploaded to our server for processing and deleted right after.
Is there a free AI video background noise remover with no watermark?
Yes. CleanGrab is a free AI video background noise remover: a trained model separates speech from steady noise such as hum, hiss and fans, and the cleaned audio goes back into your original video file with no watermark. The picture is not re-encoded, so it is a quick way to clean up video audio free, within the 10 clips a day.
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