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.
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.
Any common audio or video file — MP3, WAV, M4A, MP4, MOV, MKV. Cleaning starts immediately: no account, no e-mail, no trial.
Our own speech-enhancement model separates your voice from the background on our hardware and suppresses the noise while keeping the voice natural.
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.
Take out fan hum, computer whir and background hiss so a home-recorded episode sounds closer to studio.
Clean up a recorded call or interview before you transcribe or publish it — traffic, typing and street noise removed.
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.
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 honest 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 honest answer was to keep the limits and the process the same everywhere.
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.
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.
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.
An honest comparison with Adobe Podcast, Krisp and Cleanvoice: where CleanGrab wins, and where we're not claiming to.
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.
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.
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.
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.
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" 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.
Why per-speaker tracks beat one mixed file, and which artefacts the calling platform already baked in before you got the recording.
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.
The short version, no explanation: drop a recording in, get a clearer voice back, no account and no install.
Cleaning up a whole episode, or a backlog of them, before you publish — and why 10 episodes a day is plenty here.
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.
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.
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.
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.
Your upload is deleted the moment it has been processed, and the cleaned file is wiped within 45 minutes. Nothing is stored, shared or used to train anything — see the Privacy Policy.
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.
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.
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.
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.