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Blur Image Backgrounds Online — Portrait Effect

Blur the background of an image

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Accepts: IMAGE/JPEG, IMAGE/PNG, IMAGE/WEBP · up to 20.0 MB

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Features

  • AI subject detection
  • Adjustable blur
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This tool runs on your device — your files and inputs never go anywhere.

How to Use Blur Background

Blur the background of an image No signup, and nothing gets uploaded for most use.

  1. 1

    Add your image by dragging it in or clicking the upload area.

  2. 2

    Adjust the settings — dimensions, quality, format, or crop area.

  3. 3

    Press process and let the tool render instantly, right in your browser.

  4. 4

    Download the finished image. No uploads, no account, no watermark.

Why you might like it

  • Nothing to upload — the work happens on your device.
  • Free with no signup, no watermarks, and no daily limits.
  • Works in any modern browser on any device — nothing to install.
  • Usually done in a few seconds, so it doesn't get in your way.
Try Blur BG

Frequently Asked Questions

How do I blur the background of a photo?▾

Upload your photo. The AI automatically isolates the foreground subject and applies a natural bokeh blur effect to the background.

Can I adjust the blur intensity?▾

Yes. Use the slider to dial in subtle portrait mode depth of field or heavy privacy background blurring.

Does background blur run privately on my device?▾

Yes. In-browser AI models process the image segmentation directly on your GPU/CPU without sending images to the cloud.

How do I blur photo background?▾

Open the Blur Background tool and add your image by dragging it in or clicking the upload area, adjust the settings, and press process. The result is generated instantly and ready to download — free, unlimited, and processed entirely in your browser so nothing is uploaded.

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