Remove background noise from audio
Drop a noisy voice recording in and get a clean version back: hum, hiss, fans, traffic and keyboard noise removed on our own hardware. Free, no account, 10 recordings a day.
By Sam Ridder · Last updated: September 2026
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.
What we actually see
Sitewide, in the 31 days to 21 August we logged 379 individual uploads through CleanGrab's cleaning pipeline: averaging 9.56 MB, with the single largest file at 82.94 MB. Every one of those 379 uploads, 100% of them, landed comfortably within the 1 GB limit rather than just squeaking under it; not one came within 10% of that cap. That headroom is deliberate: a typical noisy voice recording, even a long one, rarely gets close to the size where a limit becomes the problem. When an upload does get rejected here, it's almost always the 45-minute length cap rather than the size cap: the file-size limit exists mostly for the rare video upload, not for a plain audio recording. We'd rather publish that a limit is barely ever hit than dress it up as more generous than it needs to be.
Built for voice, not a generic filter
CleanGrab cleans up speech entirely on our own hardware, so there's no per-file fee and no watermark: drop in a recording and get a cleaned voice back as a 192 kbps MP3 plus a lossless WAV. No account, no sign-up, and your upload is deleted the moment it's processed.
- Hum and electrical buzz
- Hiss and background static
- Fans and air conditioning
- Traffic and street noise
- Keyboard clatter and typing
That covers remove white noise from audio too: a steady hiss with no changing pitch is exactly the kind of noise the model is best at telling apart from a voice.
Clean audio, background noise removal and AI
Getting clean audio back is the point of this page: drop a file in, pick a strength, and hum, hiss and traffic are gone. Anyone who wants to clean up background noise in audio without a desktop editor can do it here in one pass: that's how to clean background noise from audio on a phone too, since the upload box works the same on mobile.
Because a trained model tells voice from noise, it acts as an audio cleaner ai, or noise removal ai, rather than a fixed filter: which is also what makes it a general noise removal tool for hum, static, fans and traffic. Doing this as audio background noise removal online means nothing to install, and you can remove background noise from audio online free, no downloads, no trial that expires. Under the hood the model learns to separate background noise from audio by spotting speech first; used this way it's a background remover audio engine that leaves the voice untouched. If you just want to get rid of background noise in audio fast, Balanced is the setting built for that.
Free background noise removal from audio, online and AI
There's no paywall hiding the result: this is clean audio ai free from upload to download, every time, aiming for clear sound audio with the hum and hiss gone, not a robotic voice. Because it runs in the browser, it works as an audio cleaner online with nothing to install, and the three strength settings cover sound noise removal beyond just hum: static too. Use it to remove background noise from audio recording files made on a phone, a laptop mic or an interface, with no conversion first. The same audio cleaning ai model handles a two-minute voice memo or a long lecture alike.
Every strength setting is free audio background noise removal, or audio background noise removal free: Gentle, Balanced and Strong all sit behind the same no-account upload box. That stays true for free background noise removal from audio calls, lectures or voice memos specifically. This tool to remove background noise from audio online runs the cleanup on our own hardware, not your device's battery. To remove background noise from audio, the AI listens first for whatever isn't speech, then pulls it down instead of using a fixed filter. Drop a remove background noise from audio file in and the cleaned MP3 and WAV come back within minutes.
Remove background noise from audio: free, AI, by the clip
There's one free tier here: the remove background noise from audio ai free version, Gentle, Balanced and Strong, all at no cost. A short remove background noise from audio clip free of watermarks gets the identical one-pass cleanup as a full recording, and a remove background noise from audio file for free result runs up to 45 minutes long, ten times a day. Drop a remove background noise audio clip in and the before/after plays right in the browser first: ai remove background noise audio, bluntly, hands the voice back untouched while the room noise is gone. Beyond the free settings, a paid pass can remove background noise enhance audio further with loudness levelling on top.
Cleaning up a whole podcast episode rather than a one-off clip? See the podcast audio cleaner page. Audio background noise removal is the whole job here: drop a file in, pick a strength, get a cleaned MP3 and WAV back. Background noise removal from audio happens right here, in the same upload box, taking MP3, WAV, M4A, FLAC or OGG directly, no plugin to install. To eliminate background noise from a clip you're still recording, run it through here once you've exported the audio: this only works on a finished file, not live background noise cancellation during a call, which is a job for your headset or calling app's own real-time suppression instead.
How to remove background noise audio picks up
A phone memo, a Zoom call, a field recording: the fix is the same every time: one pass, nothing to configure.
Doing it by hand in Audacity, Premiere or CapCut
If you would rather do it by hand, most editors have a noise tool, and each wants you to learn its controls. Audacity background noise reduction works through the built-in Noise Reduction effect: to reduce background noise Audacity needs you to sample a stretch of pure noise first, then apply it to the rest. Premiere Pro has a DeNoise effect, CapCut's mobile and desktop apps have a noise-removal toggle, DaVinci Resolve keeps its Noise Reduction plugin on the Fairlight page, and Final Cut Pro and GarageBand ship their own voice-isolation filters. OBS's noise suppression is built for a live stream rather than a file, and Kapwing and Media.io work like this page, upload and download, with their own export limits. CleanGrab skips the controls and hands you a cleaned file.
How to remove background noise
- Open CleanGrab and drop your recording in (MP3, WAV, M4A, FLAC, OGG, or a video file).
- Pick a strength: Gentle, Balanced or Strong.
- A speech-enhancement model, running on our own hardware, separates your voice from the noise.
- Compare before/after in your browser, then download the cleaned MP3 or WAV.
What it won't fix
Heavy room echo and reverb are a harder, separate problem: CleanGrab reduces light echo, but it will not fully erase a very reverberant room. We'd rather say that plainly than promise something the tool can't do.
CleanGrab is tuned for voice and speech, podcasts, interviews, calls, voice memos, lectures. On music or other non-speech audio the result can be poor, and the tool will tell you when it couldn't detect clear speech instead of handing you a mangled file.
Dealing with an electrical buzz specifically? The hum and hiss page covers that in more depth. Cleaning up a video's audio track instead of a standalone recording? See removing background noise from video.
This remove background noise from audio free online tool needs no install and no account, on any device. A short remove background noise from audio clip and a full recording up to 45 minutes go through the exact same one-pass cleanup. Recorded on a remove background noise from audio mac laptop or anywhere else, the file comes back as a cleaned MP3 and WAV every time.
Sources
- Noise reduction - Wikipedia: Noise reduction is the process of removing noise from a signal
Common questions
What kinds of background noise does it remove?
Hum, hiss, fans, air conditioning, traffic, street noise and keyboard clatter are removed well, while the voice is kept natural.
Can it fix echo or reverb?
Heavy room echo and reverb are a harder, separate problem: CleanGrab reduces light echo, but it will not fully erase a very reverberant room. We'd rather say that plainly than promise something the tool can't do.
Does it work on music?
CleanGrab is tuned for voice and speech, podcasts, interviews, calls, voice memos, lectures. On music or other non-speech audio the result can be poor, and the tool will tell you when it couldn't detect clear speech instead of handing you a mangled file.
How to get rid of background noise in audio without an editor?
Editors make you learn their controls; here you upload the file, pick Gentle, Balanced or Strong and compare before and after in the browser.
How to remove background noise from an audio recording made on a phone?
Copy the voice memo to the device you are browsing on, drop it in and download the cleaned MP3 or WAV. M4A files from phones work as they are.
What kind of audio noise is easiest to remove?
Steady noise such as hum, hiss and fans, because it does not change the way a voice does. A steady hiss with no changing pitch is exactly the kind of noise the model separates best from speech.
Is there an app that removes background noise?
Apps usually mean installing something. CleanGrab is a website, so there is nothing to install and no account, and it works on any device.
Is it really free?
Yes: no account, no watermark, 10 recordings a day. Adobe Podcast, Krisp and Cleanvoice all limit free usage to push you toward a paid tier. Here the free version cleans recordings up to 45 minutes, ten a day, with no watermark; the optional pass only raises that ceiling, it never lowers it. The ads around the tool cover running our hardware.
What happens to my file?
Your upload is deleted the moment it's processed and the cleaned file is wiped from the server within 45 minutes. Nothing is shared or used to train anything. See privacy.
How do I remove background noise from audio, step by step?
Upload the recording (MP3, WAV, M4A, FLAC, OGG or a video file), leave the strength on Balanced, listen to the before and after in your browser, and download the cleaned MP3 or lossless WAV. There is no noise sample to record first and no settings menu, so how to remove the background noise in audio from a phone, a budget microphone or a call recording comes down to the same three steps. If you just want to remove bg noise fast, Balanced is the setting built for that and is enough to remove the background hum and hiss on most recordings; Gentle and Strong are for the two edge cases. Here is how to clean audio from a noisy interview: go to Strong if the guest's room is noisy, and back to Gentle if voices start to sound processed.
Is it free, and does it work online without an account?
Yes. CleanGrab is a free bg noise remover: 10 recordings a day with no account and no watermark, and the count resets at midnight. It is noise removal software that runs in the browser, so there is nothing to install: you remove noise from audio online free, and it will reduce noise the same way in a phone browser as on a desktop, because the processing happens on our own server. The upload is deleted right after processing and the cleaned file within 45 minutes.
Does it handle wind, static or a crowd, not just hum?
Static is steady noise, so it comes out the same way hum and hiss do. Wind is harder: in our synthetic test (artificial wind as loud as the voice, strongest setting) the low-frequency wind came down by only about 0.4 dB, so a foam windscreen on the microphone helps more. A crowd is harder: it's other voices, and a model built to preserve speech tends to keep some of them rather than strip them out, so results vary with how loud the crowd is next to your speaker.
Does this work on a recording from a microphone, not a phone or webcam?
Yes: it doesn't care what recorded the file, a USB mic, an XLR interface, a phone or a laptop's built-in mic all come in as the same audio file. What it can't do is clean a live mic feed while you're talking; that's the real-time noise suppression built into your headset or calling app, not this page.
Is this an AI noise remover, or a fixed filter?
A trained AI model tells voice apart from noise, rather than a fixed filter or EQ curve. That's why hum, hiss, fans and traffic come out while the voice keeps its natural tone instead of sounding processed.
Can I remove background noise from audio call recordings, like a phone or video call?
Yes: a call recording goes in the same way as any other file; hum, static and background chatter are pulled down while the voice stays natural.
Does this remove background noise and enhance audio quality beyond the free strength settings?
The free tier removes noise at Gentle, Balanced or Strong; a paid pass adds loudness levelling and a heavier repair pass on top for rough recordings. 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.
Is there a video showing a noisy recording cleaned up?
Yes. Watch the free before-and-after demo of a noisy voice recording cleaned up in CleanGrab.
Which free background noise remover works online without signing up?
CleanGrab. It is a free background noise remover online: it runs on this page, so there is nothing to install. Drop in an MP3, WAV, M4A, FLAC or OGG file, pick Gentle, Balanced or Strong, and download the cleaned MP3 or WAV. There is no sign-up and no watermark; the free version cleans up to 10 recordings a day, each up to 45 minutes and 1 GB. If you want to see other free options side by side, there is a list of free audio noise removers.