Blur Image Background

Usually this is about hiding something

Blurring a background is often treated as a styling choice, but most people arrive with something specific to hide: a cluttered room behind a video-call headshot, a whiteboard with client information on it, documents on a desk, other people's children in the background of a school photo, a house number or street sign.

For that job, turn the blur up. A gentle blur looks tasteful but leaves text readable and faces recognisable; a strong one removes the information. The slider runs from 1 to 20 and starts at 10, which is a natural-looking middle. If your reason for blurring is privacy rather than aesthetics, push it toward 20 and check the preview at full size before downloading.

This is not the same as portrait mode

Worth understanding, because it sets expectations correctly. A camera's portrait mode produces optical blur: things further away are blurred more than things nearer, light sources turn into soft circles, and the falloff is gradual because it comes from physics.

This applies one even blur to everything that is not the subject, regardless of distance. On a photo where the background is all roughly the same depth — a wall, a room, a garden — the result is convincing. On a scene with obvious depth, a corridor or a landscape, it can look flat, because everything blurs by the same amount. That is the honest limit of doing this after the photo was taken rather than in the lens.

It works best on photos of people

The automatic detection uses a portrait model, so people are what it recognises reliably — headshots, full-body shots, group photos. For a pet, a product or an object it will usually find no subject, say so, and fall back to colour-based detection, which separates the background by colour instead. That works against an even background and struggles against a busy one. The tool tells you which method produced your result.

If the edge is not clean, the Edge tightness slider adjusts where the cut between subject and background falls. Raise it if the sharp area bleeds into the background, lower it if the subject's hair or shoulders are being blurred.

Related tools

Remove Background from Image removes the background entirely and gives you a transparent PNG. Change Image Background replaces it with a colour or another image, which is the better option for a CV or ID photo, and Profile Photo Maker crops a finished photo to profile-picture sizes.