Pixelate Image

Need to redact a screenshot, hide a phone number on a contract photo, or anonymize a face the recognizable way? RelahConvert pixelates regions in JPG, PNG, and WebP images — turning the area into a chunky block mosaic that obscures detail w

How to Pixelate an Area in an Image in Three Steps

  1. Upload your image — click "Select Image" or drag and drop a JPG, PNG, or WebP file.
  2. Draw rectangles over what to pixelate — click and drag to mark each region. Add as many as you need.
  3. Download — save the image with each region rendered as a chunky pixel mosaic.

The Best Free Tool to Pixelate Sensitive Areas in Photos

Need to redact a screenshot, hide a phone number on a contract photo, or anonymize a face the recognizable way? RelahConvert pixelates regions in JPG, PNG, and WebP images — turning the area into a chunky block mosaic that obscures detail while staying visually obvious as a deliberate edit.

Adjust the block size for finer or coarser results. Smaller blocks keep more shape recognizable; larger blocks make the area unreadable. Multiple regions can be marked in one image, and the pixelation is permanent in the output.

Why Pixelate Instead of Blur?

Why Pixelate Instead of Blur?

How is pixelation different from blur?

Pixelation replaces an area with a grid of solid-color squares (a mosaic look). Blur smooths the area into a gradient. Pixelation is more obvious as a redaction; blur looks softer.

Can I pixelate multiple areas?

Yes. Draw as many rectangles as needed in the same image. Each region pixelates independently and the resulting image contains all of them.

Can I control how blocky the mosaic looks?

Yes. Adjust the block size — smaller blocks keep more original shape, larger blocks make the region completely unreadable.

Is the pixelation reversible?

No. The output file replaces the original pixels with the mosaic, so the underlying detail cannot be recovered from the saved image.

What image formats are supported?

JPG, PNG, and WebP. The output keeps the original format unless you choose to convert.