Every Noise.
Gone. For Free.
Other apps charge $20/month to clean your recordings. CleanCast removes hiss, hum and background noise from audio and video right in your browser — video stays at full 1080p quality.
One tool
One cleaner. Two sides.
For audio files
Podcasts, voice notes, interviews, music demos. MP3, WAV, M4A, OGG, FLAC in — pristine lossless WAV or 320k MP3 out.
Clean an audio file →For video files
Vlogs, lectures, client footage. The picture is copied untouched at its original 1080p/4K — only the noisy audio track gets replaced.
Clean a video →Why CleanCast
The only one that does all four.
Everyone else picks two or three. We picked all four because you shouldn't have to compromise to clean up a recording.
| Feature | CleanCast | Adobe Podcast | CapCut | Auphonic | Cleanvoice |
|---|---|---|---|---|---|
| Files stay on your device | |||||
| Free with no watermark | |||||
| No signup required | |||||
| Works on video files | |||||
| Keeps original video quality | |||||
| Works offline |
How it works
From noisy to crystal clear.
Drop your file
Audio or video — it loads straight into your browser. Nothing is uploaded, ever.
AI strips the noise
A neural noise model scrubs hiss, hum, wind and room noise from the audio on your device.
Download, full quality
Video comes back at its original 1080p/4K — untouched. Audio exports as lossless WAV or 320k MP3.
"I built CleanCast because I didn't want to pay $20/month just to remove background noise from my own voice notes. So I made the tool I wanted — free, private, and living in your browser — and put it online for anyone else tired of subscriptions."
— the maker of CleanCast
The price
Others charge $20/mo.
You pay $0.
Because your device does the work, there's nothing to charge you for. No trial. No watermark. No "3 free minutes."
Pro is coming
Batch cleaning, 4K video support, and longer files. Free version stays free — always. Get notified when Pro drops.
Tip the maker
CleanCast is free forever. If it saved you a subscription, tip what you like.
FAQ
Good questions.
Is it really free?
Yes. Everything runs on your own device using open-source AI, so there's no server bill to pass on to you. No account, no watermark, no limits per day.
Does my video lose quality?
No. The video stream is copied bit-for-bit — 1080p stays 1080p, 4K stays 4K. Only the audio track is replaced with the cleaned version.
Are my files uploaded anywhere?
Never. Processing happens 100% in your browser. You can even turn off your internet after the page loads and it still works.
How big can my files be?
It depends on your device's memory. Roughly up to 2 GB for video and 500 MB for audio on a laptop — less on older phones.
What noise does it remove?
Background hiss, fan and AC hum, wind, traffic rumble, keyboard clatter, room echo bleed — anything that isn't voice. Use the strength slider to go light or aggressive.