Your files never leave your device. All processing happens in your browser.
Open the Img Stop Blur Background tool and drop your photo. The AI finds the person or object on your device and blurs everything behind it. Adjust Blur strength, optionally make the background black & white, darker or lighter, then click Blur background and download.
About the Blur Background (Portrait Effect)
The Img Stop Blur Background tool gives any photo the soft, professional look of a phone’s portrait mode or an expensive lens. AI separates the subject from the background directly in your browser, then blurs only the background so your subject stays sharp.
Background pixels are blurred without the subject mixed in, so there is no dark halo around hair and edges. Make the background black & white for a color-splash effect, or darker or lighter to make the subject stand out.
Key features
- Automatic subject detectionPeople, pets and products are found by on-device AI.
- Adjustable blurFrom a gentle depth effect to strong bokeh.
- Color splashBlack & white background, colorful subject.
- Darker or lighter backgroundMake the subject pop.
- No haloSubject colors are kept out of the blurred background.
- Full resolutionThe result keeps your photo’s original size.
How to use the Blur Background (Portrait Effect)
- Upload a photo Drop your photo or paste it with Ctrl+V.
- Adjust the blur Move Blur strength until it looks right.
- Pick an effect Keep Blur only, or choose Black & white, Darker or Lighter.
- Download Click Blur background and save your photo.
Blur Background (Portrait Effect) at a glance
| Price | Free, no watermark |
|---|---|
| AI model | Runs on your device |
| Effects | Blur, black & white, darker, lighter |
| Output | JPG, PNG or WebP at full size |
| Batch | Several photos at once |
| Processing | In your browser – photos are not uploaded |
When to use it
- Make profile pictures and LinkedIn photos look professional.
- Hide a messy room or busy street behind you.
- Make product photos stand out.
- Create color-splash photos for social media.
- Protect privacy by blurring people and places in the background.
Tips for the best result
- Photos with a clear subject and some distance from the background work best.
- A blur of 10–20 looks natural; higher values look like a big-aperture lens.
- Combine Darker with blur for dramatic portraits.
- The first photo takes longer while the AI model downloads.
Frequently asked questions
How can I blur the background of a photo?
Upload it to the Img Stop Blur Background tool. The AI detects the subject and blurs the background automatically; adjust the strength and download.
Can I blur the background without blurring my face?
Yes. Only the background is blurred – the detected person or object stays sharp.
Can I make the background black and white?
Yes. Choose Black & white under Background effect for a color-splash photo.
Does it work on phone photos?
Yes, on Android and iPhone browsers. A computer with Chrome or Edge is fastest.
Are my photos uploaded?
No. The AI runs in your browser.
Learn more
- MODNet – the open-source AI model that separates the subject from the background
- Image segmentation – how AI separates objects in a photo
Last updated October 30, 2026 by the Img Stop team.