SoundproofGuide · Privacy
How to Remove Background Noise Without Uploading Your Audio Anywhere
Most "AI audio cleanup" tools work by uploading your recording to a server. For a lot of files — confidential interviews, legal or HR conversations, therapy notes, unreleased work, anything you simply wouldn't paste into a website — that's a dealbreaker. You want the noise gone without handing your audio to someone else's cloud.
You can. On a Mac, on-device noise removal cleans your file locally — no upload, no account, and it keeps working with Wi-Fi switched off.
Use a tool that runs the model on your Mac instead of in the cloud. Soundproof does exactly that: drop a file in, it cleans locally, and your recording never leaves your device. A purchase is verified online once at activation — after that, cleaning is fully offline.
Why most noise removers upload your audio
Cloud tools run their model on their own servers, so your file has to travel there and back. That means your recording lands — however briefly — on a company's infrastructure, under their terms and their retention policy. For everyday audio that may be fine. For sensitive material, it's exactly the thing you're trying to avoid.
What "on-device" actually means for you
- No upload. Your source recording, the processing, and the cleaned export all happen on your Mac.
- No account. You can download, clean files and export without signing up for anything.
- Works offline. Turn on airplane mode and cleaning still runs — proof the audio isn't going anywhere.
- Not used to train models. Your recordings aren't collected, inspected, or used to improve anyone's model.
- Deletion is in your hands. Because the files are local, removing them is just deleting them in Finder.
To be precise: a purchase is verified online once, when you activate. The noise cleanup itself never needs the internet — pull the Wi-Fi and Soundproof keeps working. Your recordings are never part of that check.
Cloud vs on-device, at a glance
| Typical cloud tool | Soundproof (on-device) | |
|---|---|---|
| Where audio is processed | Their servers | Your Mac |
| Needs internet to clean | Yes | No |
| Account / sign-in | Usually required | Not required |
| Works with Wi-Fi off | No | Yes |
| Suits confidential recordings | Risky | Yes |
| Your audio used for training | Check the terms | No |
Don't take our word for it — watch the network
The nice thing about local software is that it's verifiable. Download Soundproof free, open Activity Monitor's Network tab (or a firewall tool like Little Snitch), clean a file, and watch: the cleanup runs without shipping your recording anywhere. Then, if you like it, buy it — once.
Clean private recordings without the cloud
Soundproof removes steady background noise — fan, AC, hum and hiss — entirely on your Mac. No upload, no account, works offline. Download it free and prove it on your own files.
macOS 13.4+ · Apple Silicon & Intel · Works offline · One-time purchase, no subscription
Frequently asked questions
Does anything get uploaded when I clean a file?
No. Soundproof cleans audio and video on your Mac with an on-device model. Your recordings are never uploaded — no cloud, no server, no account. A purchase is verified online once at activation; your recordings are not part of that check.
Do I need an account or sign-in?
No. You can download, clean files and export without creating an account.
Does it work offline or in airplane mode?
Yes. Once installed and activated, cleaning runs entirely offline — you can turn Wi-Fi off and it still works.
Is it suitable for confidential or legal recordings?
That's a big reason it's local-first. Because your audio never leaves your Mac, there's no upload to a third-party server. If you email a file to support, though, that copy is no longer local-only — only send samples you're comfortable sharing.
Do you use my recordings to train your model?
No. We don't receive your recordings, and they aren't used to train models or inspected in any way.