Noise Gate Online
Silence hum, hiss, and room noise below your chosen threshold in any audio file — right in your browser. Drop a file, pick a level, preview, download — no sign-up, and your file is never uploaded.
How to Apply a Noise Gate to Audio
No attack, no release, no plugins — 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 you the waveform.
Pick a Threshold
−30 dB for loud noise, −60 dB for a quiet room. It starts at −45 dB, the sweet spot for most voice cleanup.
Preview & Download
Hit Apply Gate, listen to the result, then download an MP3 at the bitrate you choose — no queue, no watermark.
Why Notevibes Noise Gate
Effect sites make you upload and wait. This one doesn’t.
Four Threshold Presets
−30, −40, −50, or −60 dB. Aggressive for loud hum and fan noise, gentle for quiet rooms — one tap each, no attack/release knobs to misjudge.
RMS-Window Detection
A moving 10 ms loudness window decides when to close the gate, so a single quiet sample in the middle of a word never punches a hole in your speech.
Never Uploaded
The gate runs entirely in your browser. Your file never leaves your device — there is nothing to delete because nothing was sent.
Preview, Then Download
Hear the gated result before you commit. If it clips a word, drop to a lower threshold and try again — then download an MP3.
Any Audio Format
MP3, WAV, M4A, FLAC, OGG, AAC — anything your browser can decode loads instantly, up to 200 MB.
Free, Anywhere
No watermark, no sign-up, no limits. Works on phones, tablets, and laptops — on mobile you can send the result straight to your share sheet.
Nothing to Upload, Nothing to Leak
The gate runs on your own device. Your recording never touches a server — which is a stronger promise than any “we delete it later”.
No Upload
Decoding and gating run on your device
No Account
Start gating immediately
Works Offline
Once the page loads, no connection needed
When to Use a Noise Gate
Anywhere quiet gaps are full of noise that shouldn’t be there.
Podcast Cleanup
Mute room tone and breath sounds in the gaps between sentences
Audiobook Narration
Cleaner silence between paragraphs without editing every gap by hand
Vlog & Voiceover
Kill hum and hiss during pauses so the voice sits against clean silence
Interview Recordings
Tame air-conditioning, fan noise, and computer hum between answers
Vocal & Stem Cleanup
Mute mic bleed in the quiet parts of a vocal or instrument stem
Stream & Game Chat
Clean captures with constant background noise between callouts
Silence the Room, Keep the Voice
You recorded a clean take, but listen to the gaps: a fan hums, the room breathes, a laptop whirrs under every pause. Noise like that is easy to miss while recording and impossible to ignore on playback. The usual fixes are heavy-handed — a DAW plug-in with attack, release, and hold settings you have to learn, or an upload-and-wait website that hands your voice to a server. This page does one thing: it mutes everything below the level you pick, right in your browser, in about a second.
A gate, not a guess
A noise gate watches how loud your audio is, moment to moment. When the level drops below your threshold — during a pause, a breath, the space between words — it closes and the sound goes silent. When you speak again, it opens. The threshold is the only decision you make, and there are four presets from −30 dB (aggressive, for loud noise) to −60 dB (gentle, for quiet rooms), starting at −45 dB where most voices sit.
No holes in the middle of words
The catch with naive gates is that they react to single quiet samples and chop the tails off words. This one measures loudness over a short moving window instead of instant by instant, so it stays open through the natural dips inside speech and only closes on real silence. You preview the result before downloading — if a soft word gets clipped, drop to a lower threshold and render again.
Private and free, because it runs on your machine
Nothing you drop here is uploaded — the gate runs in your own browser, on your own device. That makes it safe for interviews, client recordings, and anything else you wouldn’t hand to a stranger’s server. It’s also why it’s honestly free: there’s no server bill to pass on, so there’s no watermark, no sign-up, and no daily cap, up to 200 MB.
When a gate isn’t the right tool
A gate mutes the quiet parts but leaves noise under the speech untouched. If the hiss rides through the whole recording, the AI-powered noise reducer or background noise remover will do more. If you’d rather delete the silent gaps entirely than mute them, that’s the silence remover.
When one threshold isn’t enough
This page does one thing well. When you need to stack the gate with EQ, compression, a de-esser, and a limiter on a whole track, open the file in the online audio editor — same gate, full control.
Need Full Voice Cleanup?
The full Notevibes editor stacks the noise gate with EQ, compression, a de-esser, and a limiter — clean up whole tracks, then export 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.
Quick Noise Remover
In-browser noise cleanup with a strength you control.
Silence Remover
Cut silent gaps, auto-trim edges, or split at silence.
De-esser
Tame harsh S sounds in vocal recordings.
Audio Compressor
Even out loud and quiet parts with dynamics compression.
Voice Enhancer
One-click clarity chain for muffled voice recordings.
Voice Recorder
Record audio from your microphone in the browser.
Noise Gate FAQ
What is a noise gate?
A noise gate silences anything below a chosen volume threshold. It's the classic way to kill background noise, room tone, hum, hiss, mic bleed, and breath sounds during the gaps in speech or music — while leaving the speech itself untouched.
Is my audio file uploaded to a server?
No. The noise gate runs entirely in your browser using the Web Audio API. Your file never leaves your device — nothing is transmitted, so there's nothing for us to store or delete.
Which threshold should I use?
−30 dB is aggressive — use it only when the noise is loud, like heavy hum or fan noise. −40 to −50 dB is the sweet spot for podcast and dialogue cleanup. −60 dB is gentle, for quiet rooms where you want to keep soft breaths and tails. The tool starts at −45 dB.
Will it cut off the start or end of words?
If you set the threshold too high, it can. The gate is hard — it snaps from open to closed the moment the level crosses the threshold — so very quiet syllable starts can drop. If you hear chopping, pick a lower (more negative) threshold.
Noise gate vs. silence remover — what's the difference?
A silence remover deletes silent sections from the timeline, so the file gets shorter. A noise gate replaces them with true digital silence: the file stays the same length, but the background noise during the gaps is muted.
What formats and file sizes are supported?
MP3, WAV, M4A, FLAC, OGG, and AAC up to 200 MB — anything your browser can decode will load. Output is an MP3 at the bitrate you choose, from 64 to 320 kbps.
Is the noise gate free?
Yes — completely. Because processing runs on your device rather than our servers, there's nothing to gate behind a paywall: no watermark, no sign-up, no daily limits.
Does it work on my phone?
Yes — iOS and Android browsers included. On phones a Send button hands the finished MP3 straight to your native share sheet.