Free AI Audio Enhancer
Remove background noise and clean up voice recordings in your browser
Clean up audio and video files with AI: take out hum, hiss and room noise, or enhance a poor recording so it sounds like it was made on a professional microphone. Free, private, nothing to install.
Processed on your device. Your file is never uploaded.
Clean up audio with AI — no uploads, no sign-up, no watermark
cleanup.audio is a free AI audio enhancer that runs entirely in your browser. Drop in an MP3, WAV, M4A or a video, and it removes background noise or restores the voice without your file ever leaving your device.
Most noise removal tools work one of two ways: upload your file to a server and wait, or install a desktop editor and learn noise profiles and EQ. cleanup.audio skips both — the AI model downloads to your browser and processes the audio on your own computer.
There are two modes. Remove noise is the default: it takes out hum, hiss, fans, traffic and room tone while leaving the voice and any music natural. Enhance voice goes further and rebuilds the speech itself, turning a muffled laptop or phone recording into something that sounds studio-made.
How it works
Drop, preview, download
Hear the difference before you process anything — and nothing ever gets uploaded.
Drop your file
Any audio file (MP3, WAV, M4A, OGG, FLAC) or a video (MP4, MOV, WebM, MKV). It opens in your browser — nothing is uploaded.
Preview before you commit
Pick Remove noise or Enhance voice and flip between the original and the cleaned version on a short preview, with a time estimate measured on your device.
Download the clean file
The whole file is processed locally and comes back in the same format. Video keeps its picture untouched — only the soundtrack changes.
What you can clean up
Built for spoken audio
Podcasts
Take out room echo, air-conditioner hum and background chatter so every guest sounds like they were in the same studio.
YouTube & voice-overs
Clean narration recorded on a laptop or USB mic before it goes into your edit — no audio plugins or DAW needed.
Meetings & interviews
Rescue Zoom, Teams and Meet recordings where the speaker was on a weak mic or sitting in a noisy room.
Lectures & courses
Make classroom and webinar recordings easier to follow by removing projector fans and hall noise.
Phone recordings
Turn a voice memo or phone-camera video into something that sounds like it was recorded on a proper microphone.
Field & on-location audio
Reduce wind, traffic and crowd noise in vlogs, street interviews and event recordings.
Why use an audio cleaner that runs in your browser?
Server-based audio enhancers pay for every minute they process, so their free tiers come with accounts, monthly limits and upload queues. Running the AI on your own device removes all of that:
- Your recordings stay private. Interviews, meetings and client audio never touch a server.
- No waiting in a queue. Processing starts the moment you click — no upload, no download link.
- No limits. Clean as many files as you like, as long as you like.
- Hear it first. The before/after preview runs on a short window so you only process the whole file once you like the result.
Supported formats and requirements
| Audio formats | MP3, WAV, M4A, AAC, OGG, Opus, FLAC |
|---|---|
| Video formats | MP4, MOV, WebM, MKV |
| Output | Same format as the input (FLAC comes back as lossless WAV) — video keeps its picture |
| Modes | Remove noise (Fast, Balanced, Best) or Enhance voice |
| File size & length | No fixed limit — longer files simply take longer |
| Processing | On your device, in the browser. Nothing is uploaded |
| Remove noise requirements | Any modern browser (WebAssembly) — works on virtually any device |
| Enhance voice requirements | WebGPU (supported in all major browsers, desktop and mobile); one-time ~234 MB model download |
Free AI audio cleaners compared
| cleanup.audio | Adobe Podcast Enhance | Audacity | |
|---|---|---|---|
| Free to use | Yes, unlimited | Free tier with limits | Yes |
| Account required | No | Yes (Adobe ID) | No |
| Files uploaded to a server | No | Yes | No |
| Install required | No — runs in the browser | No — runs in the browser | Yes (desktop app) |
| AI voice enhancement | Yes | Yes | No (manual noise reduction) |
| Works on video files | Yes — picture kept | Audio-focused | No — audio only |
FAQ
Frequently asked questions
Is cleanup.audio really free?
Yes. There is no sign-up, no watermark and no limit on how many files you clean. The processing runs on your own device, so it costs us nothing to give it away.
Do I need an account or to install anything?
No. Open the page, drop a file and go. The AI models load in your browser the first time you use them.
Are my files uploaded anywhere?
No. Your audio or video never leaves your computer — the AI models download to your browser and run there. That also makes it safe for private recordings you would not want to upload.
What is the difference between Remove noise and Enhance voice?
Remove noise takes out background sound (hum, hiss, fans, traffic, room noise) and keeps everything else as it is. Enhance voice goes further: it rebuilds speech so a laptop or phone recording sounds like a studio microphone.
Which mode should I use?
Start with Remove noise — it is fast and keeps music and sound effects intact. Switch to Enhance voice when the speech itself sounds bad: muffled, echoey, distorted or recorded far from the mic. The preview lets you hear both before you commit.
Does Enhance voice work on music?
No. Enhance voice is built for speech — music underneath the voice gets mangled, and its output is mono. For recordings with music, use Remove noise.
Which file formats can I use?
Audio files such as MP3, WAV, M4A, AAC, OGG, Opus and FLAC, and video files such as MP4, MOV, WebM and MKV. You get the same format back — except FLAC, which comes back as lossless WAV.
Can I clean up the audio in a video?
Yes. Drop the video in and only its soundtrack is changed — the picture is copied over untouched, so there is no loss in video quality.
How long does it take?
It depends on your device and the length of the file. After the preview, the tool shows a time estimate measured on your own hardware. Remove noise on the Fast setting is the quickest option.
Which browsers are supported?
Remove noise runs on WebAssembly, so it works in any modern browser on virtually any device — Chrome, Edge, Firefox and Safari, desktop or phone. Enhance voice uses WebGPU, which all major browsers now support, and downloads its AI model (about 234 MB) the first time you use it, so a recent browser version and a Wi-Fi connection help.
Can I use the cleaned audio commercially?
Yes. The file is yours — there is no watermark and no licence attached to the output.
Audio too quiet or uneven?
Normalize loudness so every clip plays at the same volume — free, in your browser, same as this.
Try the free audio normalizer →