Blur a whole photo, or just a face, license plate, or block of text — free, instant, processed entirely in your browser.
JPG, PNG, and WebP supported
The Blur Image tool softens a photo using the same Gaussian blur your browser already knows how to render, either across the whole image or just inside a box you drag over one area — the classic way to obscure a face, a number plate, or a line of text in a screenshot before sharing it.
A stronger blur destroys more of the fine detail, which is what makes it useful for hiding sensitive information. Everything runs in your browser using the canvas engine's built-in blur filter — your photo is never uploaded to a server.
| Strength | Effect | Good for |
|---|---|---|
| 2–6px | Light softening, still recognisable | Subtle background softening |
| 8–15px | Clearly blurred | General privacy blurring |
| 16–30px | Strongly obscured | Hiding faces, plates, sensitive text |
| 30px+ | Almost unrecognisable | Maximum obscuring |
Can I blur just a face or part of a screenshot?
Yes — tick "Blur selected area only", then drag and resize the box over the face, text, or account number you want to hide. Everything outside the box stays sharp.
Is blurring safe for hiding sensitive information, or can it be reversed?
A strong blur genuinely destroys fine detail like small text, and generally cannot be reversed. For maximum certainty on very sensitive information (like a full card number), our Pixelate tool gives a harder, more predictable guarantee since each block becomes one flat colour.
Is my photo uploaded to a server?
No. Blurring happens on your own device using your browser's built-in canvas engine — the image is never transmitted anywhere.
What blur strength should I use?
Light blur (4-8px) softens detail while keeping shapes recognisable, useful for a subtle background effect. Strong blur (15px+) is better for genuinely obscuring faces, text, or other sensitive detail.
Can I blur the background of a photo but keep the subject sharp?
This tool blurs a rectangular area, so it works well for backgrounds that sit in a defined region of the frame. For a subject cut cleanly out of a busy background, try our Background Remover instead.
Does blurring reduce the image resolution?
No — the output keeps the same pixel dimensions as the original. Blurring softens detail without changing the image size.
Can I download, print or email the blurred image?
Yes — Download saves the blurred copy, Print opens it in a print-ready tab (from which you can also choose Save as PDF), and Email sends it via your device's share sheet where supported, or your mail app with a reminder to attach the downloaded file.