Layered blur effect
Blur Image Background Online
Turn the full photo into a soft background and retain a crisp centered foreground—useful for social posts, portrait layouts, and aspect-ratio padding.
Your image stays on your device; processing happens in this browser.
How to use the blurred image background maker
- STEP 1Select an image from your device.
- STEP 2Choose the background blur radius with the slider.
- STEP 3Download the layered composition as PNG.
About this tool
This tool builds a two-layer composition: a cover-sized blurred copy fills the canvas while a fitted sharp copy sits above it. The result keeps the full subject visible without plain borders.
The sharp layer uses about 84% of the canvas so the blurred backdrop remains visible around it.
This deterministic layout does not use subject detection, so it works locally and consistently without sending your photo to an AI service.
Frequently asked questions
Does this tool remove the background?
No. It creates a blurred full-frame copy behind a smaller, sharp copy of the complete image; it does not identify or cut out a person.
Can I control the blur?
Yes. The slider changes the background blur radius from subtle softness to a strong defocused look.
Are photos uploaded?
No. Both layers are rendered locally using your browser canvas.