Blur Image
Blur a whole image or just one area — faces, license plates, private data — with a live strength slider.
Drag & drop an image here, or click to browse
No uploads. Your files stay on your device.
Drag on the preview to place the box, or type exact pixel values.
How it works
Drop an image and drag the strength slider — the blurred preview is redrawn instantly. The blur is a real gaussian blur applied with the Canvas API inside your own browser, so the picture is never uploaded to a server, never stored and never seen by anyone but you. That matters for the most common reason people blur a photo: hiding a face, a name badge, a license plate or a screenshot full of private data.
Choose Entire image for a soft background or banner, Selected area only to
censor one region (drag a box straight on the preview, or type exact pixel coordinates), or
Everything except the selection to blur the background and keep your subject sharp.
Pixels along the edges of the image are extended outwards before blurring, so you never get
the faded, semi-transparent border that naive canvas blurring produces. Downloads are PNG so
the result stays lossless, and Copy CSS gives you the matching
filter: blur(…) rule for a stylesheet.
Frequently asked questions
How do I blur part of an image?
Drop your image, pick "Selected area only", then drag a box over the part you want to hide — a face, a name badge, a license plate — or type exact pixel coordinates for the area. Only the pixels inside that box are blurred; everything else stays perfectly sharp. Raise the blur strength until the detail is unreadable (20 px or more for text) and download the PNG.
Can I blur the background of a photo and keep the subject sharp?
Yes. Choose "Everything except the selection" and place the box over your subject. The tool blurs the whole image and then redraws the selected area sharp on top, which gives a simple depth-of-field look for product shots, profile pictures and screenshots. It is a rectangular selection rather than an AI cut-out, so it works best when your subject roughly fills a box.
Is my image uploaded anywhere when I blur it?
No. The blur is applied with your browser's own Canvas API, so the file never leaves your device — nothing is uploaded, stored or logged, and the tool keeps working offline once the page has loaded. That is what makes it safe for redacting screenshots, documents and photos of people before you share them.