Image Tools
Blur Image
Add a blur effect to your image with a simple slider.
Choose an image to get started.
Image Tools
Add a blur effect to your image with a simple slider.
Choose an image to get started.
Blur Image is a free online tool that lets you blur any image instantly without installing software. Whether you need to hide sensitive information, protect faces for privacy, blur backgrounds, or create visual effects, this tool handles it all in seconds.
Image blurring is a digital technique that reduces the clarity of specific regions in a photograph or graphic by averaging pixel values in a local area. This produces a softened, indistinct effect that can hide faces, license plates, personal details, or unwanted background elements while keeping the rest of the image intact.
The tool applies a mathematical filter (typically Gaussian blur) to your image by calculating weighted averages of neighboring pixels. You upload your image, select or draw the area you want blurred, choose the blur intensity (from subtle to heavy), and download the result instantly. No processing servers keep your file—everything happens in your browser.
| Input | Result | Notes |
|---|---|---|
| A portrait photo with a busy office background | Sharp face, soft-focus blurred background | Ideal for professional profiles where background distraction matters |
| A street scene photo with a person's face and a visible street sign | Pixelated/blurred face and sign, rest of scene clear | Protects privacy when sharing candid public photos |
| A screenshot containing a password, API key, or confidential number | Sensitive text completely obscured, document context preserved | Safe to share documentation or tutorials without leaking secrets |
No. All processing happens in your browser. Your image never uploads to any server and is deleted from memory once you download or leave the page.
Pixelate and heavy Gaussian blurs are effectively permanent—the original pixel data is replaced, not hidden. Light blurs can theoretically be analyzed by advanced software, so use higher intensity for truly sensitive data.
JPG, PNG, GIF, WebP, and BMP. The tool works with any standard image format and preserves quality during download.
Yes. Use the free-form brush tool to select exactly what you want blurred. You can blur just eyes, a full face, a number, or any region.
No. You can adjust blur radius from 1 pixel (subtle) up to 100+ pixels (completely opaque/pixelated). Higher values create stronger privacy or visual effects.
Undo works while you're editing. Once you download the image, the blur is permanent. To make changes, re-upload and blur again.