How accurately does it detect the subject?

Detection works well on clear, well-lit photos with a distinct subject — busy scenes or subjects that blend into the background are more challenging for any automated detection.

Can I control how strong the background blur is?

Yes, blur intensity is adjustable, so you can go from a subtle depth effect to a heavily blurred background.

Does this work on group photos with multiple people?

It can, though detection accuracy with multiple subjects (deciding what counts as "the subject" to keep sharp) varies more than with a single clear subject.

Does Blur Image Background upload my files to a server?

No. Blur Image Background runs entirely in your browser using on-device processing, your files never leave your device.

Blur Image Background

Automatically detect the subject and blur just the background of a photo.

Runs in your browser

Drop a photo here

Choose File

About this tool

Blurring just the background while keeping the subject sharp — the classic "portrait mode" look — traditionally needs either specific camera hardware or manually masking the subject in an image editor. This tool automatically detects the subject and blurs just the background of a photo, giving you that portrait-style depth effect on any photo, camera hardware or manual masking not required.

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