Blur Video Background
BetaThe people sharp, the room soft — like a portrait lens.
Free · No upload · No sign-up · No watermark
How to blur the background of a video
- 01
Open your video
Any video of a person — a talk, a vlog, a video call recording. It stays on your device.
- 02
Set the blur
The AI keeps the people sharp in every frame and blurs everything behind them — light or strong, as you like.
- 03
Download
Export an MP4 with the blurred background, the sound as it was.
Why use Cutlia for this
People stay sharp
The AI finds the people in each frame, so hair, hands and shoulders stay crisp while the room goes soft.
As much blur as you want
From a gentle portrait look to a background no one can make out — a messy room or a whiteboard hidden.
Nothing leaves your device
Blurring for privacy shouldn't mean uploading the video: everything runs in your browser.
Frequently asked questions
Can I blur a background with no people in it?
The AI keeps people sharp; in a shot without anyone, the whole picture is blurred. For other subjects, film them in front of a green screen and use “Green screen”.
Will the blur follow me when I move?
Yes — every frame is looked at, so the sharp part moves with you.
Is my video uploaded to a server?
No. Cutlia processes your video directly in your browser using WebAssembly and your device's hardware. The file never leaves your computer or phone, so it stays completely private.
Made for
Each one is this tool, set up for the job — and it still does everything.
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