Image
Blur

Apply adjustable Gaussian blur effects to images with real-time preview and download.

PNG, JPG, or WebP.

Blur Radius

10px

Higher radius = stronger blur. Range: 1–50px.

Result

No Output

Upload an image and apply blur to see the result.

Learn more

How does blurring relate to image compression under the hood?

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Frequently Asked Questions

This tool applies a full-image Gaussian blur. Upload your image, drag the radius slider to set the blur strength, then click Apply Blur. For selective blurring of specific areas, you would need a desktop image editor like GIMP or Photoshop.

Gaussian blur smooths the image by averaging neighboring pixels with a bell-curve weighting, producing a natural soft focus effect. Pixelate blur (mosaic) divides the image into large blocks and averages each block, creating a distinctive blocky censored look.

Blurring can actually reduce file size when saved as JPEG or WebP, because these formats compress smoother areas more efficiently than sharp edges. A heavily blurred image saved as JPEG will typically be smaller than the sharp original.

Image Blur Tool - Blur Photos and Images | ToolsCanvas