Blur Photo Background Online

Keep the person or object sharp and soften everything behind it with an adjustable blur, for a portrait-style look on photos taken with any camera.

Sent securely, processed, and never saved.

A portrait-style blur on any photo

Cameras with large sensors and wide lenses blur backgrounds naturally. Most photos from everyday cameras do not. This tool recreates the look afterwards: it finds the subject, keeps it untouched, and applies a blur to everything else.

It is a classic Gaussian-style softening, not AI generation. Nothing is invented or redrawn, so the background keeps its original colours and shapes, just out of focus.

Choose the right blur strength

The slider runs from 2 to 30 px. Low values give a gentle depth-of-field hint, and high values turn a street or room into soft colour patches.

  • 2 to 8 px: subtle depth, good for product shots where context should stay readable.
  • 10 to 18 px: the usual portrait look, where the background is clearly soft but still recognisable.
  • 20 to 30 px: strong blur for hiding a messy room, a crowd or a car park.
  • Large photos may need a higher value than small ones to look equally soft.

Best photos for this effect

Clear separation between the subject and the scene helps. People standing in front of buildings, pets on grass and objects on tables all work well. Busy photos with several overlapping subjects at different distances are harder, since the model picks the main one.

Blur is useful for hiding things you would rather not show: a cluttered desk behind a video call screenshot, signs in the background of a street portrait, or other people walking behind you.

Blur or replace?

Blur keeps the sense of place. If the place itself is the problem, remove it with the transparent background maker, choose a clean tone in the background changer, or put another scene behind you with edit photo background.

Phone users can follow our guide to blur the background on an iPhone, and the general walkthrough is in how to blur the background of a photo.

What happens to your photo

Your photo is sent over an encrypted connection to the site's server, processed, and returned straight away. The site does not save or keep images, and location and camera metadata are removed from the copy that is sent. It is free with a daily allowance of 30 images per visitor, and the output has no watermark.

How to blur the background of a photo

  1. Upload your photo

    Drop a JPG, PNG or WebP file onto the box, or tap it to choose one.

  2. Let the model find the subject

    It separates the subject from the scene once, which usually takes a few seconds.

  3. Choose Blur and set the strength

    Move the slider between 2 and 30 px and watch the preview until the softness looks right.

  4. Save the photo

    Export as JPG, PNG or WebP.

Questions

How do I blur the background of a photo online?

Upload the photo, wait a few seconds for the subject to be found, choose Blur, set the strength and download the result.

Is it free to blur a background?

Yes. There is no account and no watermark, with a daily allowance of 30 images per visitor.

How strong can the blur be?

From 2 to 30 px. Start near 12 for a portrait look and adjust from there.

Does it use AI to generate a new background?

No. The AI model only finds the subject. The background is the original, softened, so nothing is made up.

Can I blur out only part of the picture?

The tool blurs everything except the main subject it detects. For other cases, use the subject cutout and a different background.

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