Remove background noise from audio, free
Let your voice come through. Subtrims reduces steady background sounds such as fan noise and hiss in speech recordings. Listen before and after, then download. Free, no account, no upload.
Remove background noise free ↗
Remove background noise from audio free, in your browser
The Remove Noise tool runs entirely on your device, powered by the open-source RNNoise engine. Your recording is not uploaded, so it works for private interviews, voice-overs and client audio.
How to reduce background noise
- Open the Remove Noise tool.
- Drop in an audio or video file: MP3, WAV, M4A, MP4, MOV or WebM.
- Choose Balanced to keep more of the original sound, or Strong for more reduction.
- Pick MP3 or WAV as the download format.
- Press Remove Background Noise, compare Before and After, then download the clean audio.
Remove background noise from video free
You can drop a video file straight in. The tool cleans the speech in its audio track and gives you an audio file (mono MP3 or WAV); the video itself is not re-exported. Bring the clean audio back into your editor and replace the original track.
What it works best on
It is designed for speech with steady background noise, like a fan, air conditioning or microphone hiss. It is not meant for music or vocal separation. Some noise may remain and voices can sound different, so always listen to both versions. Your original file is unchanged.
Limits
Free files can be up to 5 minutes long and 100 MB.
Tips for a cleaner voice
- Start with Balanced; switch to Strong only if noise is still distracting.
- Record closer to the mic so the voice is louder than the background.
- Clean the audio before you generate subtitles for more readable results.
FAQ
Is the noise remover free?
Yes. It is free and needs no account or credit card.
Is my audio uploaded?
No. Noise reduction runs locally in your browser. The site does not upload or store your audio or video.
Can I remove background noise from a video?
Yes. Drop in an MP4, MOV or WebM file. You get a cleaned mono audio file; the video is not re-exported.
What kind of noise does it remove?
Steady background sounds in speech, such as fan noise and hiss. It is not designed for music or vocal separation.
Which formats can I download?
MP3 or WAV.
Remove background noise free ↗