Blur Image Online Free
Runs 100% in your browser — your files never leave your device.
Obscure sensitive text in a screenshot, soften a background, or create a dreamy out-of-focus look. The blur radius controls how strongly pixels blend into their neighbors. The whole effect is computed in your browser — nothing is uploaded.
How it works
- 1
Add your image
Drop a JPG, PNG, or WebP into the box or click to browse. Nothing is uploaded.
- 2
Blur it
Tune the control until the effect looks right on your image.
- 3
Download the result
Click to apply and download the edited image in its original format.
About this tool
How the blur works
Blurring blends each pixel with its neighbors over a radius you control. Small radii soften grain and edges; large radii dissolve detail entirely into smooth gradients of color. The effect is computed across the whole frame at once.
When to reach for it
Hide sensitive text or details in screenshots, soften busy backgrounds behind overlaid text, or create depth-of-field style backgrounds for designs. A light blur also smooths skin and paper texture before other effects.
Tips for the best result
For hiding information, choose a radius large enough that the original characters cannot be reconstructed — tiny blurs over text can sometimes be reversed by patient tools. For truly sensitive content, use pixelation with big blocks instead.
Frequently asked questions
Can I blur only one region of the photo?
This tool blurs the entire frame. To censor a single area, crop the region first and blur it on its own, or pixelate the full image with blocks large enough to obscure the detail.
Will the original file change?
No — the blur effect is applied to a working copy in memory. Your original file stays untouched on your device, and the download is a brand-new file.
Which formats and sizes work?
JPG, PNG, and WebP files up to 50 MB. The result downloads in the original format with dimensions unchanged.
Does blurring reduce the file size?
Usually yes — fewer fine details means the image compresses more efficiently, particularly as a JPG. Softer images are simply cheaper to store and faster to load.