Blur Background
Keep the subject sharp and blur a busy background — powered by AI, right in your browser.
Drag & drop a photo here, or click to browse
JPEG, PNG, or WebP
A cluttered or distracting background can undercut an otherwise good photo, and cropping isn't always an option. This tool uses a real AI image-segmentation model to identify your photo's subject, then blurs everything else while keeping the subject itself sharp — the same portrait-mode effect phone cameras produce, applied after the fact to any photo you already have. The AI step runs once per photo; after that, dragging the blur-intensity slider just recomposites the already-detected subject over a more or less blurred backdrop, so adjustments feel instant. Everything happens locally in your browser via WebAssembly — your photo is never uploaded to a server.
How it works
- 1
Upload a photo — the AI model runs once to detect the subject.
- 2
Adjust the blur intensity slider until the background looks right.
- 3
Download the result as a PNG.
Frequently asked questions
Is this actually AI, or just a uniform blur over the whole photo?
It's genuinely AI/ML-powered — an on-device neural network segments the subject from the background first, then only the background pixels are blurred while the subject stays sharp. This is different from "Scanned Mode" elsewhere on this site, which is plain, non-AI canvas math — this tool does real subject detection.
Why does the first use take longer than later ones?
The AI model (roughly 40MB) has to download to your browser the first time you use this tool on a given device. That can take a few seconds on fast broadband or a minute or two on a slower connection — your browser caches it afterward, so later uses skip straight to processing.
Will the edge between subject and background always look clean?
Usually, but not perfectly — segmentation accuracy depends on the photo. Busy backgrounds, fine hair detail, glasses, and low-contrast edges can all produce a slightly rougher blend at the boundary. Well-lit photos with a clearly distinct subject give the cleanest results.
Can I adjust how strong the blur is?
Yes — the blur intensity slider recomposites instantly using the subject that's already been segmented, without re-running the AI model.
Is my photo uploaded anywhere?
No. The AI model runs locally in your browser (WebAssembly) — your photo is never sent to a server, before or after processing.