A background noise remover free for any audio recording or video.
Free, no sign-up, 10 recordings a day. Drop an audio file or a video and get a clean version back: hum, hiss, fans, traffic and keyboard noise removed.
and counting
ⓘ CleanGrab removes noise (hum, hiss, fans, traffic), not music playing in the background. For music behind a voice, StemGrab does a cleaner job.
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.
Video in, the same video out with the noise gone from the audio. 10 a day, no account. Heavy echo is reduced, not fully erased.
From noisy to clean
1. Drop a recording or video
Any common audio or video file: MP3, WAV, M4A, MP4, MOV, MKV. Cleaning starts immediately: no account, no e-mail, no trial.
2. The AI removes the noise
Our own speech-enhancement model separates your voice from the background on our hardware and suppresses the noise while keeping the voice natural.
3. Compare & download
Play the before/after right in your browser, then download the cleaned file as MP3 or lossless WAV. Uploaded a video? You also get your video back with the clean audio in it: the picture is copied across untouched, never re-encoded. Your upload is wiped automatically.
The noise we get most
Room & mic noise
Take out fan hum, computer whir and background hiss so a home-recorded episode sounds closer to studio.
Zoom & call recordings
Clean up a recorded call or interview before you transcribe or publish it: traffic, typing and street noise removed.
YouTube clips & vlogs
Drop the video itself. CleanGrab cleans the voice and puts it straight back into your file, so you download a finished video: no editor, no re-export, no quality loss on the picture.
What we actually see
In the 39 days to 29 August, CleanGrab was opened 3,606 times by 2,378 real visitors: not bots, from 119 different countries. India sent the most traffic (269 visits), ahead of the US (102), Pakistan (69), Brazil (58), Germany (58), the Philippines (50), France (41) and Nigeria (39). Most people came in through an ordinary browser rather than via a link or a click inside the site: 407 arrived via a link from one of our other free tools (StemGrab, ScribeGrab and the rest of the suite), against 680 who came in directly through a browser and 23 who clicked around inside the site itself. That's the picture of who's here: people who came straight through a browser or found us via one of our other tools while cleaning up a song or a transcript elsewhere, not an audience we bought with ads. That spread of countries is also part of why nothing here is gated behind sign-up or a region check: 119 countries means 119 different ideas of what a normal file size or a normal connection looks like, and the simplest answer was to keep the limits and the process the same everywhere.
Guides
Remove noise from a recording
Every noise type it handles, hum, hiss, fans, traffic, keyboards, which strength to pick, how to clean a Zoom or Teams call, and what to do when the result isn't right.
Remove background noise from a video
Cleaning the sound inside a video file without a video editor: why the picture stays untouched, which formats work, and where noise removal runs out of road.
Clean up audio for a YouTube video
Room noise, fan hum and traffic in vlogs, talking-head clips and screen recordings: where this fits in your workflow, and why YouTube won't fix it for you.
A free Adobe Podcast alternative · Best free noise removal tools
A comparison with Adobe Podcast, Krisp and Cleanvoice: where CleanGrab wins, and where we're not claiming to.
Background noise in an audio file
What Gentle, Balanced and Strong actually change in decibels, which noise the model was built for, and which noise no amount of processing will remove.
Hum and hiss
Where a 50/60 Hz buzz and microphone hiss come from in your own setup, and five things that fix them at the source in half a minute.
Room echo and reverb
Which half of room echo actually comes out, the tail that rings between your words, and which half no browser tool undoes, measured against a dry reference.
Fabric rustling noise
Why clothing rustle against a lav mic is harder to remove than steady hum or hiss, and how well it comes out compared to the rest.
Wind noise
Filmed outside and the wind is roaring over your voice? How much actually comes out, measured against steady hum, and why the real fix happens at the microphone, not after.
Sibilance and hissing recordings
"Sibilance" means two different things: a hissing background CleanGrab removes, and sharp S/T sounds in the voice it doesn't. We measured which is which before writing this one.
A Zoom or Teams recording
Why per-speaker tracks beat one mixed file, and which artefacts the calling platform already baked in before you got the recording.
Making a voice recording clearer
Why a muddy recording is usually a contrast problem rather than a volume one, which setting to start on, and what cleaning can't add back.
Enhance speech online
The short version, no explanation: drop a recording in, get a clearer voice back, no account and no install.
Audio enhancer, free
A voice recording or the sound of a video comes back clearer, with background noise, hum and hiss pulled down. MP3, WAV, M4A or video, 10 a day, no sign-up.
AI voice enhancer, free
For voice memos, calls, interviews and lectures: the voice comes back clearer and the noise around it drops away. No account needed.
Remove dog barking from video
Voice only mode keeps the voice and pulls barking and birdsong down, in a video or an audio file. How much comes out in our tests, and where it falls short.
Isolate voice from background noise
Keep the voice and pull the background down in a recording or video, and the one case where it gets it wrong: two people talking at once.
Podcast audio cleaner
Cleaning up a whole episode, or a backlog of them, before you publish, and why 10 episodes a day is plenty here.
Can I remove background noise from a recording without an account?
Yes. Drop the file in the box above: there is no sign-up and no watermark, you get 10 recordings a day, and each file can be up to 45 minutes.
Which audio and video files can I clean?
MP3, WAV, M4A, FLAC and OGG for audio, and MP4, MOV, MKV and WEBM for video. You download the cleaned file as MP3 or lossless WAV, and a video comes back with the clean audio in it.
Can I remove background music from a recording?
CleanGrab removes noise such as hum, hiss, fans and traffic, not music playing in the background. For music behind a voice, StemGrab does a cleaner job.
Questions about noise
How to clean up audio?
Drop an audio or video file on the box above. There is nothing to set: the voice is kept and the layer of noise underneath it is pulled out, and you download the result a few seconds later.
Is it really free?
Yes: no account, no watermark, 10 recordings a day. Where Adobe Podcast, Krisp and Cleanvoice limit you to an hour a day or month, CleanGrab gives you ten separate recordings before the counter resets at midnight, and it adds no jingle. Each file can be up to 45 minutes free, or 3 hours with a pass. The ads around the tool keep the servers running.
What noise can it remove, and can it fix echo?
It removes background noise well: hum, hiss, fans, air conditioning, traffic and keyboard clatter, while keeping the voice. Echo is a harder, separate problem, and only half of it comes out: the tail that rings in the gaps between your words drops a long way, but the reverb landing on top of the words while you speak largely stays. See the room echo guide for what we measured.
Can I clean the audio in a video?
Yes, and you get the whole video back: not just a loose audio track. Drop in an MP4, MOV, MKV or WEBM and CleanGrab lifts out the audio, removes the noise, and puts the clean track back into your file. The picture is copied across bit-for-bit and never re-encoded, so the video quality is exactly what you uploaded. You still get the MP3 and WAV as separate downloads if you want to drop the audio into an editor yourself.
What happens to my file?
Your upload is deleted the moment it has been processed, and the cleaned file is wiped within 45 minutes. Nothing is shared or used to train anything. See the Privacy Policy.
Does it send my audio to an outside AI service?
No: it runs entirely on our own hardware. That is exactly what lets us keep it free, with 10 recordings a day, where others charge or cap you.
Does it work on music?
It's tuned for voice and speech (podcasts, interviews, voice memos, calls, lectures). On music the result may be poor, and the tool will tell you when it couldn't detect clear speech instead of handing you a mangled file.
Got audio to split or transcribe too?
Same family: StemGrab splits songs into stems and trims clips with its audio cutter, and ScribeGrab turns speech into text and subtitles: both free. The whole family lives at ShinobiTools.
What kinds of noise does it remove?
Background noise like hum, hiss, fans, air conditioning, traffic, street sounds and keyboard clatter are removed well, while the voice is kept. Heavy room echo and reverb are a harder, separate problem: CleanGrab reduces light echo but will not fully erase a very reverberant room.