Blur photo background (portrait mode)
Keep the person or object sharp and blur everything behind it, like the portrait mode on a phone camera.
Input
How to use this tool
- Enter your values or choose a local file. Replace the example data with your own.
- Review options, units and assumptions, then run the tool.
- Check the result before copying or downloading it. Keep an original copy of important files.
Method & assumptions
Keep the person or object sharp and blur everything behind it, like the portrait mode on a phone camera.
AI subject mask → background blurred (3-pass box blur ≈ Gaussian) → subject composited on topWorked example
street-portrait.jpg (3000 × 4000) → street-portrait-blur.jpg (medium blur)
Limits & important notes
The AI model (about 26 MB) downloads the first time you press Run and is then kept by your browser. Results depend on contrast between subject and background; check fine details such as hair before publishing.
Content updated:
Privacy & Free to use
Are my inputs stored?
Your inputs stay in this tab. We do not receive your files, pasted text or calculation values.
Is this tool free?
Yes. No signup or payment is required.
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