Blur Image Online (Gaussian Blur Effect)

Free Online Image Blur Tool

Need to blur an image quickly? Our Image Blur tool applies a smooth Gaussian blur effect to any photo. Perfect for creating backgrounds, hiding sensitive information, or adding artistic depth to your images.

Use Cases

Background Effects: Create soft, blurred backgrounds for text overlays.
Privacy Protection: Blur faces, license plates, or sensitive data.
Artistic Effects: Add depth-of-field or dreamy aesthetics.
Thumbnails: Create subtle blurred previews.

How It Works

Upload your image and use the slider to adjust blur intensity from 0px (no blur) to 20px (heavy blur). The effect is applied in real-time using the Canvas API, so you can see changes instantly. When satisfied, download your blurred image as a PNG.

Blur images online — full photo or just parts of it

Blur an entire photo for a soft dreamy look, or brush the blur over faces, license plates and addresses you'd rather not publish. The brush size is adjustable, and the blur strength goes from a light haze to complete unrecognizability.

Since processing is local, you can safely blur documents and personal photos without ever sending them to a stranger's server — the exact thing you don't want when hiding private info.

What people use it for

Hiding faces, plates and house numbers before posting
Soft backgrounds to make text overlays readable
Depth-of-field style effects for product photos
Censoring screenshots before sharing them at work

Frequently asked questions

Can I blur only part of an image?

Yes. Use the brush to paint the blur exactly where you want it — faces, logos, any detail. Everything outside the brush stays sharp.

Can blurring be undone on the blurred areas?

Not by anyone: the pixels are genuinely mixed. Reset the tool to start over from the original instead.

How strong is the blur?

Adjustable from a subtle soft-focus to heavy smear. For hiding private data, pick a high strength — light blur can sometimes be reversed.

Does it work on phones?

Yes, you can paint with your finger directly on the photo.

Image Blur

Upload Image