Runs locally

Image Blur

Processed on your device · No uploads

Blur specific parts of your image with precision.

Drop your image here
or click to browse

How to Blur Parts of an Image

  1. Upload the image you want to blur by dragging or selecting it.
  2. Choose the blur type (Gaussian/Mosaic) and adjust intensity and brush size.
  3. Drag over the areas you want to blur, then download the result.

The blur tool hides parts of a photo you'd rather not show — faces, license plates, personal details. Soften areas with a Gaussian blur or pixelate them with a mosaic, painting only the spots you want with an adjustable brush. The result is saved as a PNG.

Gaussian blur vs mosaic

A Gaussian blur smoothly smears the edges for a natural look, while a mosaic covers the area with chunky pixel blocks that firmly block recognition. To hide personal information, prefer a mosaic or a strong blur that's hard to reverse. Adjust the intensity and brush size to cover exactly as much as you need.

When this is useful

Great for hiding addresses and plates in resale photos, covering strangers' faces in group shots, or masking personal details in reviews. Before posting online, run the result through the image compressor. See our image blur guide for step-by-step tips.

Frequently Asked Questions

What is the difference between Gaussian and Mosaic blur?
Gaussian blur creates a smooth, soft blurring effect, while Mosaic divides the area into pixel blocks for a pixelated look.
Does blur affect the rest of the image quality?
No. Unblurred areas remain at original quality. The image downloads as PNG with no compression loss.
Are files uploaded to a server?
No. All processing happens 100% in your browser. No images are sent to any external server.
Can I undo blur strokes?
Yes, use the Undo button to restore the previous state. Up to 20 undo steps are supported.
Can I undo a blur?
While working, the undo button restores the previous step. Once you download the saved image, however, the hidden information cannot be recovered.
Can I blur only part of the image?
Yes. Drag the brush over the image to blur only the areas you choose.

Related guides

Related tools