Background Blur

Blur the background of a photo in your browser: keep the subject sharp, soften the scene behind it, and download a JPG or PNG.

Photos with a long edge over 4096px are scaled down first.

Subject type

First use downloads 6.9 MB; later visits use the browser cache.

Everything runs in your browser — your photo is never uploaded.

Choose a photo, then press “Blur background”.

This is simulated depth of field from a subject mask, not a camera lens blur. Hair edges may still show a slight transition.

How it works

This utility runs locally in your browser for privacy and speed.

1 ⚡

Unlimited local tools

This run costs 1 credit(s) and is saved to your history automatically.

Log in to save and view your usage history.

My usage history

No runs recorded yet.

Frequently asked questions

Do I get free credits to try Background Blur?
Yes — new accounts get 3 free credits to spend on any tool, Background Blur included. After that you only pay for what you run.
How many credits does Background Blur cost?
Everything runs in your browser and nothing is uploaded: free accounts pay 1 credit per run, and Pro or Pro+ members run it as often as they like.
Can I use Background Blur for adult or NSFW images?
No. Pornographic, sexual and sexually explicit material is banned on Zhankeng: such requests are refused, and an account that repeats them can be suspended. Images of minors are never accepted. See Terms of Service for the full content policy.
Is the content I paste private?
Background Blur uses your input only to generate the result. Stored results are deleted automatically by our retention policy, and you can remove any run from your history.
Do I need to install anything?
No. Background Blur works in any modern browser — nothing to download or install.

Related tools

Tools people usually need next, in the same workflow.

Background Remover

1 ⚡

Remove image backgrounds in one click and download a transparent PNG.

ID Photo Maker

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Swap the background and crop to standard ID photo sizes in seconds.

Image Compressor

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Shrink JPG, PNG and WebP images to a target size — right in your browser.

Image Resizer

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Resize by width, height, longest edge or percent, keeping the aspect ratio.