Portrait Blur
This free portrait blur tool uses on-device AI to find the person or subject in your photo, keep them crisp, and blur everything behind them for a soft portrait-mode background. Drop or paste a picture and it all runs in your browser, so the photo never leaves your device.
Runs entirely in your browser — the photo never leaves your device. Uses the same on-device AI as the Background Remover to isolate the subject; the model downloads once, then caches.
How to use Portrait Blur
- 1 Drop a photo on the box, click to browse, or paste one with Ctrl/Cmd V.
- 2 Wait while the AI model downloads once and isolates your subject.
- 3 Drag the Background blur slider (2-40px) to set how strong the bokeh is — it re-renders instantly.
- 4 Download the PNG, copy it, or open it in the annotator.
Frequently asked questions
Is my photo uploaded to process it?
No. Subject detection and blurring run entirely in your browser with an on-device AI model. Your photo never leaves your device.
Why is there a download the first time?
The tool fetches the AI background-detection model once, then caches it. After that first load, processing is fast and works even offline.
Can I change the blur amount after processing?
Yes. The subject cutout is cached, so moving the Background blur slider re-blurs the background instantly without re-running the AI.
What file do I get back?
A PNG with your subject sharp and the background blurred. You can download it, copy it to the clipboard, or send it to the annotator for further edits.