Background Noise Remover Online
Kill hum, hiss, fan, and AC noise in any recording — right in your browser. It auto-detects the noise profile, subtracts it across the whole file, and lets you preview before you save. No sign-up, and your audio is never uploaded.
How to Remove Background Noise
No noise selection, no calibration — three steps on your own device.
Drop Your Audio
MP3, WAV, M4A, FLAC, OGG, or AAC, up to 200 MB. It decodes right in the browser and shows the waveform.
Pick a Strength
Light, Standard, or Aggressive. Most recordings just need Standard — the tool finds the noise profile for you.
Preview & Download
Hear the cleaned result, pick your MP3 bitrate, and it downloads instantly — no queue, no watermark.
Why Notevibes Noise Remover
Instant, private spectral cleanup with a dial you control.
Auto Noise Profile
The tool samples the quietest slice of your file and builds the noise fingerprint automatically — no hunting for a noise-only region to select first.
Spectral Subtraction
An in-browser FFT subtracts that fingerprint from every frame while keeping the voice, so it cleans during speech, not just in the silent gaps.
Three Strengths
Light preserves detail, Standard handles most cleanup, Aggressive digs deeper when the noise is loud — switch and re-preview in a click.
Preview Before You Save
Hear the denoised result and pick your MP3 bitrate before anything downloads — so you never save an over-scrubbed take.
Never Uploaded
Detection and subtraction both run in your browser. Your recording never leaves your device — there is nothing to delete because nothing was sent.
Free, Anywhere
No watermark, no sign-up, no limits. Works on phones, tablets, and laptops in any modern browser.
Your Recording Never Leaves Your Device
Noise detection and subtraction both happen on your own device. Your file never touches a server — a stronger promise than any “we delete it later”.
No Upload
Detection and cleanup run on your device
No Account
Start denoising immediately
Works Offline
Once the page loads, no connection needed
What People Clean Up
Best for steady-state noise sitting under the sound you want.
Podcast Room Tone
Subtract the fan, AC, and computer hum sitting under a home recording
Muffled Voice Memos
Lift a hissy phone-mic memo into something clearer
YouTube Voiceover
Get cleaner dialogue out of an untreated room
Old Tape & Vinyl
Take the steady hiss off cassette dubs and vinyl rips
Outdoor Recordings
Soften constant wind, traffic, or rain behind the voice
Lecture & Call Audio
Clean up captured lectures, classes, and conference recordings
Kill the Hiss Without Losing the Voice
You didn’t hear the fan while you were recording, but it’s there on the file — a steady hiss or hum sitting under every word. A noise gate won’t help; it only mutes the silent gaps and does nothing while someone is talking. This tool takes a different approach: it learns what the noise sounds like and subtracts it across the whole recording, speech included.
It finds the noise for you
There’s no “select a noise-only region” step. The tool samples the quietest slice of your file, takes its frequency fingerprint, and uses spectral subtraction — the same approach studio restoration tools use — to remove that fingerprint from every frame while keeping the voice. Pick Light, Standard, or Aggressive, preview the result, and adjust before you save.
Instant and private, because nothing is sent
The whole thing runs on your own device with an in-browser FFT — no upload bar, no queue, and no server copy of your recording. That’s also why there’s nothing to charge for: files up to 200 MB, no watermark, no sign-up, as many files as you like.
When to reach for the AI tools instead
Browser-side subtraction is fast and free, but it leans on a classic profile-and-subtract method rather than a trained model. When a recording is badly degraded, the AI noise reducer and background noise remover run server-side and can pull cleaner speech out of heavier noise. Once the noise is gone, the voice enhancer adds EQ, compression, and a limiter for a broadcast-ready finish, and the full online audio editor gives you manual control over every step.
Need to Do More Than Denoise?
The full Notevibes editor cleans, evens, and polishes your audio with manual effects and AI tools — then exports to MP3 or WAV.
Free to try · No credit card required
Related Audio Tools
More free AI audio tools from Notevibes — same engine, no sign-up.
Voice Enhancer
One-click clarity chain for muffled voice recordings.
AI Noise Reducer
Remove background noise with a neural AI denoiser.
Background Noise Remover
Clean hum, traffic, and echo from voice recordings.
Noise Gate
Silence the gaps between phrases automatically.
Silence Remover
Cut silent gaps, auto-trim edges, or split at silence.
Voice Isolator
Pull clean speech out of noisy recordings with AI.
Noise Remover FAQ
How does background noise removal work?
The tool finds the quietest slice of your audio — usually room tone between words — and takes its frequency fingerprint. Then it subtracts that fingerprint from every frame of the file while keeping the phase, so the steady background noise drops away and the voice stays.
What kind of noise does it remove?
It works best on steady-state noise: hum, hiss, fan, air conditioning, computer whir, mic self-noise, and tape hiss. It can soften constant sounds like rain or traffic. It will not fix one-off sounds like door slams or coughs — those need a different tool.
When should I pick Light, Standard, or Aggressive?
Light removes gentle hum and hiss while preserving every detail. Standard handles most podcast and voice-memo cleanup. Aggressive removes more but can add a faint watery texture on speech. Start with Standard and preview before saving — if it sounds dull, step back down.
How is this different from the AI noise reducer?
This tool runs entirely in your browser — instant, private, and free, with a strength dial you control. The AI noise reducer and background noise remover run on the server and upload your file for a heavier, model-based cleanup on tougher recordings. Try this one first; reach for the AI tools when the noise is severe.
How is this different from a noise gate?
A noise gate simply mutes anything below a volume threshold, which only helps in the silent gaps. A spectral noise remover works during speech too, subtracting the noise while leaving the voice intact.
Is my audio uploaded to a server?
No. Both the noise detection and the subtraction run in your browser using an in-browser FFT. Your file never leaves your device — there is nothing to delete because nothing was sent.
Is the noise remover free?
Yes — completely. Because processing runs on your device rather than our servers, there is nothing to meter: no watermark, no sign-up, no limits. Files up to 200 MB.
What formats can I use?
MP3, WAV, M4A, FLAC, OGG, and AAC up to 200 MB. The cleaned result downloads as an MP3 at the bitrate you pick, 192 kbps by default.