Blur Background
Keep the subject sharp and blur everything behind it, like portrait mode
- Files never leave your device
- Runs in your browser
- Free, no sign-up, no watermark
Drop files here, or click to choose
Accepts JPG, PNG, WebP, AVIF, GIF, BMP, HEIC · You can also paste with Ctrl+V / ⌘V
How to use Blur Background
Blur the background of a photo while the person, pet or object stays sharp, similar to a portrait lens. An AI model running on your device finds the subject, so your photos are never uploaded.
- 1
Drop one or more photos on the page, or paste one with Ctrl+V.
- 2
Wait for Subject detection to finish. On first use the AI model (about 100 MB) is downloaded once and then cached by your browser.
- 3
Set Blur and Edge softness, and turn on Lens look if the blur should grow with distance from the subject.
- 4
Drag the divider in the preview to compare before and after, then click Apply and download, or Apply to N images for a batch.
Frequently asked questions
Are my photos uploaded?
No. Subject detection and blurring run in your browser. Only the model files are downloaded, once; your photos stay on your device.
Why does the first photo take so long?
The first run downloads the AI model, about 100 MB. After that it loads from the browser cache, and moving the sliders never reruns detection for a photo that was already analyzed.
Do I need an internet connection?
Only to download the model the first time. Later runs use the cached copy unless you clear your browser data.
Hair and fur edges look cut out. How do I fix that?
Raise Edge softness so the subject's outline blends into the blurred background. Detection works best on photos with one clear main subject; busy scenes with overlapping objects may be partly missed.
How is this different from Background Removal?
Background Removal makes the background transparent so you can replace it. Blur Background keeps the original background and only softens it.
What if subject detection fails?
An error appears with a Try again button. If it keeps failing, close other tabs and retry, or use a recent desktop browser; the model needs a fair amount of memory.