Can I pixelate only part of an image?

Currently the tool applies pixelation to the entire image. To pixelate only a specific area, crop that area first, pixelate it, then reassemble the image.

What block size should I use to hide a face?

A block size of 20-30px effectively hides facial features in most photos. Larger faces in close-up shots may need a block size of 40px or more.

Does pixelating reduce the file size?

Yes. Pixelated images have less fine detail, which means JPG compression works more efficiently. Heavily pixelated images can be 50-70% smaller than the originals.

Yes, completely free. No account, no download, no watermarks.

Is my image uploaded to a server?

No. Everything runs in your browser. Your image stays on your device.

Images Tool Box

Editing

Pixelate Image Online Free

Apply a pixelation or mosaic effect to any image with adjustable block size. Use it for pixel art aesthetics, privacy protection by blurring faces, retro game styles, or creative artistic effects. Works with JPG, PNG, and WebP files.