Blur image background
Blur the background outside a foreground rectangle you choose.
Local processing · Nothing is uploaded · 20 MB / 4 megapixel limit
Input & settings
Result
How to use
Enter a foreground rectangle to preserve. Everything outside it receives a box blur.
Limits and behavior
Manual rectangular foreground selection, without subject segmentation. The blur samples neighboring foreground pixels near the boundary. Still PNG, JPEG and WebP only; 20 MB, 4 megapixels and 4,096 pixels per side. Processing stays on your device. Exports apply orientation and discard source metadata. PNG output preserves transparency unless the selected operation composites it.
Apply blur outside a selected foreground rectangle
Choose a foreground rectangle and blur the area around it. This can create a simple subject-focus look for product shots or portraits.
Does it detect the exact outline of a person?
No. This tool uses a chosen rectangular foreground region rather than precise person segmentation. Edges may remain rectangular.
Related tools: Blur entire image · Background remover