Free background noise remover for voice recordings
Drop a recording, hear it with the fan, the hiss and the hum taken out, and download it if it sounds better. No watermark, no account, no upgrade prompt. Nothing is uploaded, so there is no cap to hit.
You hear it before you keep it
Before and after, one switch, same place in the recording. If it does not sound better, do not download it.
No signup, no watermark
No account, no trial, no upgrade prompt on the download. Ads pay for the site.
Nothing is uploaded
That is why there is no cap and no account. Turn your network off once it starts and it still finishes.
Nothing else changes
Same length, same channels, same loudness, same kind of file. Only the noise behind the voice is touched.
How it works
- Leave it on Standard, or pick Gentle for an old recording.
- Drop your recording, or click the box to choose a file.
- Play it and switch between Before and After. The switch keeps your place, so you are comparing the same words.
- Download it if it sounds better. The name ends with a short tag, like
memo-clean-8f2a1c.mp3.
What it is good at, and what it is not
It is built for a voice with something steady behind it: a computer fan, an air conditioner, tape hiss, a mains hum, traffic outside, the general hum of a room. That is the noise it strips out most cleanly, and the difference is usually obvious in the silences between sentences.
It is weakest at background chatter — a café, an open-plan office, other people talking behind you. That noise is speech, with the same shape as the voice you want to keep, and no tool can reliably tell one from the other. Expect little improvement there, and check by listening rather than by hoping.
Very old or very narrow recordings are the other hard case. A 1940s broadcast or a bad phone line carries so little of the voice that parts of it can be mistaken for noise and thinned out. That is what Gentle is for: it puts half of your original back, so less noise comes out but the speech is left much closer to how it started.
Standard or Gentle
Standard is the right starting point for almost everything, and for a normal indoor recording it is the only one you will need. Gentle exists for the recordings where Standard goes too far, and the way to find out is to run it and listen. Nothing is lost by trying both: your file is never sent anywhere, and running it again costs a few seconds.
What it does not do
It does not even out the volume, does not make the file smaller, does not trim or split anything, and does not let you pick a different format to save in. It takes noise out and leaves everything else where it was. If you also need the file to be smaller, the audio compressor below does that job.
It is also not a repair tool. Clipping, dropouts, echo from a bare room and a microphone that was too far away are all damage in the voice itself, not noise sitting behind it, and none of them are improved here.
Frequently asked questions
Is my recording uploaded to a server?
No. The work happens on your own device. You can switch your network off after it starts and it will still finish.
Will it remove all the noise?
No, and nothing that claims to should be believed. It is very good at steady noise that sits behind the voice — a fan, a hiss, a mains hum, traffic. It is poor at other people talking, because that noise is speech too and there is no reliable way to tell whose voice is whose. Listen to the before and after in the box above before you download; that is why it is there.
What is the difference between Standard and Gentle?
Standard takes out as much noise as the tool can. Gentle blends the cleaned version with your original, so less noise comes out but less of the voice is touched. Gentle is worth trying on old, muffled or telephone-quality recordings, where a voice can be quiet and narrow enough that the tool mistakes parts of it for noise and thins it. If Standard sounds like it has chewed the speech, try Gentle.
Does it make the file smaller, or cut it short?
No. The length and the number of channels are exactly what they were, and the file comes back at about the size it went in at. Making a recording smaller is a separate tool.
Does it change how loud the recording is?
No. It only takes noise out. The speech is left at the level you recorded it, so a quiet recording comes back quiet — just with less behind it.
What file do I get back?
The same kind of file you dropped in, wherever that is possible: an MP3 comes back an MP3, a WAV comes back a WAV, a FLAC comes back a FLAC. A few formats cannot be written here — Opus, Vorbis, WMA and AMR — and those come back as MP3.
Is there a file size limit?
There is no fixed cap, because there is no upload. The practical limit is your device’s memory. A ten-minute recording takes a few seconds.
Does it add a watermark or need an account?
No watermark, no account, no trial, and no upgrade prompt on the download. The site is free and paid for by ads.
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