Add a Blur Background to Your WhatsApp DP

Fit rectangular portrait photos into a square DP with a blurred copy background. Keep 100% of your subject visible without cutting off edges.

Blur Background Tool Full photo fitting with adjustable blur radius
Private by design. Processed locally in your browser — your image is not uploaded to our server.
Blurred background sample profile picture
Blurred Background Fit Mode

Drop your photo here

JPG, PNG or WebP

How the Blur Background Effect Works

DP Sizer Recommendation

When you upload a rectangular photo (such as a 3:4 portrait or 16:9 landscape photo), DP Sizer automatically:

  1. Duplicates your original image in memory.
  2. Enlarges the duplicate to fill the 1:1 square canvas.
  3. Applies a smooth Gaussian blur filter to the enlarged background.
  4. Centers your original un-cropped photo in the foreground.

This creates a seamless, aesthetic frame that matches the exact color palette of your photo without leaving stark white or black bars.