Background Noise Remover Online
Kill hum, hiss, fan, and AC noise in any audio file. Auto-detects the noise profile, subtracts it across the whole file. Runs entirely in your browser.
Remove Noise in 3 Steps
No noise selection, no calibration. Drop, pick strength, download.
Upload Your Audio
Drag and drop an MP3, WAV, or other audio file. Up to 200 MB.
Pick Strength
Light, Standard, or Aggressive. Most files just need Standard.
Denoise & Download
Hit Remove Noise & Download. FFT-based subtraction runs and a 192 kbps MP3 is saved.
Why Notevibes Noise Remover
FFT spectral subtraction, fully in your browser.
Auto Noise Profile
The tool finds the quietest frame in your audio and uses it as the noise estimate — no manual selection needed.
Spectral Subtraction
FFT-based magnitude subtraction with a 5% floor preserves speech while removing background noise.
Privacy First
Audio is processed locally in your browser — DSP runs in JavaScript. Nothing is uploaded.
Any Audio Format
MP3, WAV, M4A, FLAC, OGG, AAC up to 200 MB.
Clean MP3 Output
192 kbps MP3 saved straight to your device — no watermark, no ads.
Works on Mobile
Run noise removal on any phone or tablet. iOS, Android, all major browsers.
Your Audio Stays on Your Device
Every file is processed locally in your browser. Nothing is uploaded.
No Upload
File never leaves your device
No Account
Start denoising immediately
No Tracking
We never see your audio
When to Remove Background Noise
Best for steady-state noise; not for one-off sounds.
Podcast cleanup
Kill room tone, fan, AC, computer noise during recordings
Voice memo polish
Salvage muffled phone-mic recordings with hiss
YouTube voiceover
Get studio-clean dialogue from a home setup
Old tape transfers
Remove tape hiss from vinyl rips and cassette dubs
Outdoor recordings
Soften constant background like wind, traffic, rain
Lecture / Zoom audio
Clean up captured lectures, classes, conference audio
Want One-Click Vocal Polish?
The Notevibes Voice Enhancer chains noise removal with EQ, compressor, de-esser, and limiter — broadcast-ready voice in one click.
Open Voice EnhancerFrequently Asked Questions
How does background noise removal work?
The tool finds the quietest section of your audio (typically room tone or silence between words), takes the FFT of that section, and uses it as a profile of the background noise. Then for every frame in the file, it subtracts that profile from the magnitude spectrum while preserving phase. The result is clean speech or music with the steady-state noise removed.
What kind of noise does it remove?
It is most effective on steady-state noise: hum, hiss, fan, AC, computer noise, mic self-noise, and tape hiss. It can soften constant noise like rain or traffic. It does not handle one-off sounds (door slams, plosives, sirens) — those need editing.
When should I pick Light vs. Aggressive?
Light removes gentle hum and hiss while preserving every detail. Standard handles most podcast and voice-memo cleanup. Aggressive removes more noise but can introduce artifacts on speech transients (a slight watery sound). Try Standard first.
Will it muffle my voice?
Standard strength preserves voice clarity well. Aggressive can soften some high-end air. If a recording becomes too dull after denoising, run it through the Treble Booster for +3 dB at 8 kHz to restore presence.
How is this different from a noise gate?
A noise gate silences anything below a volume threshold — useful for the gaps between speech but does nothing while someone is speaking. A spectral noise remover works during speech too, removing the noise while leaving the voice intact.
Want one-click podcast cleanup?
Try the Notevibes Voice Enhancer — it chains noise removal with EQ, compression, de-essing, and limiting in one click for broadcast-ready vocals.
Is the noise remover free?
Yes. Completely free with no sign-up, no watermark, and no limits. Max file size is 200 MB.
Is my audio file uploaded to a server?
No. The noise remover runs entirely in your browser. Your file never leaves your device.
What audio formats are supported?
MP3, WAV, M4A, FLAC, OGG, and AAC. Anything your browser can decode will load. Output is exported as a 192 kbps MP3.