Blur a photo background while keeping the subject clear
Create a depth-guided background blur in your browser. Remove the background to protect the subject, adjust blur radius, and review the source-size preview.
No signup required. No watermarks. No per-image usage limit.
What is Blur Photo Background?
Background blur can pull attention toward a person or product without replacing the scene. Backgroundless estimates relative depth from the original photo and uses the extracted subject as a protected focus reference. The blur radius is yours to adjust, and you see a source-size preview before accepting. This is a local visual effect. It does not reconstruct real lens optics, measure physical distance, or determine the direction of the light. The result works best when the subject cutout is clean and the scene has visibly different depth planes.
How is depth-guided blur different from a flat blur?
A flat blur softens every pixel in the selected background equally. A depth-guided blur estimates which surfaces differ from the subject plane and varies the effect across the scene. The estimate comes from a single image, so it is relative rather than a calibrated map of real-world meters. The cutout is used as a protection mask; it is not proof that the model understood every glass edge or hair strand.
Subject protection comes from the cutout
The tool needs a background-removed subject before its button becomes available. Fully protected subject pixels stay unchanged in the compositor; soft alpha edges blend gradually. A poor matte can let blur touch a transparent strap or leave a crisp halo around hair, which is why edge review comes first.
Depth is relative to this one photo
A compact model produces a relative scene estimate at a small inference size. The tool maps that estimate back over the full-resolution photo. The inferred order may be wrong for mirrors, windows, flat artwork, or surfaces close to the subject. Compare nearby props rather than assuming every plane will be recognized.
More blur is not always better
The slider changes the maximum blur radius. A low value can separate the subject without calling attention to itself; a high value can make an ordinary phone photo appear artificial. Test the result at its intended display size and reduce the radius if edges or tabletop geometry look strange.
Blur cannot set a realistic shadow
A depth map does not reveal where a lamp or window illuminated the scene. The editor therefore keeps shadow direction and distance as manual choices. If you replace the background later, inspect contact shadows independently; do not treat depth blur as automatic relighting.
When the depth estimate struggles, Discard the preview and use a simpler edit: a conventional background replacement, a lower blur radius, or the original scene. A blur effect is useful only if the protected subject and surrounding geometry still look believable to the person viewing the final image.
Who is Blur Photo Background for?
Portraits in busy places
A street, office, or home setting can add context while competing with the face. First remove the background to obtain a protective matte, then preview a modest blur radius. Check hair, glasses, and shoulders closely: if the cutout edge is wrong, the blur can make that error more obvious.
Product hero images
A styled shelf or tabletop can stay recognizable but quieter behind a product. Keep labels and package edges sharp, compare the preview at the size used by the storefront, and make sure the scene still looks credible. If the original background must be pure white for a marketplace main image, use a white replacement instead of blur.
Food and craft photos
Plates, ingredients, hands, and tools often sit at different distances. A depth-guided effect can soften the remote scene while keeping the selected subject clear. Inspect nearby props: the model may place a surface on the wrong depth plane, and an overly strong radius can make the photo look cut out.
Social graphics with room for text
A softer background can improve readability behind a headline while preserving the original location. Preview the full composition before adding text; fine subject strands or translucent items may need cutout refinement. Use the source-size export so later cropping does not start from a reduced preview.
How do I use Blur Photo Background?
Upload and extract the subject
Open the editor, upload a photo, and run Remove Background. The extracted subject provides an alpha mask that protects its pixels during the blur. If hair or product edges are rough, use Magic Brush correction before starting the depth effect.
Choose a blur radius
In the photo-edit controls, move the Depth blur radius slider and choose Preview depth blur. The depth model estimates relative scene depth; the median depth under the protected subject becomes the focus plane. The browser then blurs other planes by different amounts.
Inspect the whole image
Review the source-size preview for subject edges, nearby surfaces, and unusual blur transitions. Accept or Discard. Acceptance changes the source photo and clears the old cutout, so run Remove Background again if you also need a transparent subject export.
How do I get better results?
Frequently Asked Questions
Can I blur a background without changing the subject?
Why must I remove the background first?
Does this match the original camera blur?
Will the export keep my photo dimensions?
Can I change the background after blurring?
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