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Image pixelation tool

Pixelate an Image Online

Add visible blocks of color to a JPG, PNG, or WebP image. Pixelate the complete image for a graphic effect, or mark individual areas to hide details while keeping the rest clear.

Free • No signup • Images stay on your device

See the difference

Before and after pixelation

See what changes and what stays clear, then upload your own image in the tool above.

Try it on your image

From a photograph to a blocky mosaic.

Before

A sharp photograph of a terracotta cottage beside the Mediterranean Sea.

After pixelation

Preparing preview…

Apply the effect across the whole photo for a retro look. Larger blocks simplify texture into bold areas of color.

Change only the part you choose.

Before

A cardboard parcel with a fictional shipping label on a cream tabletop.

After pixelation

Preparing preview…

Hide a shipping label on a parcel while keeping the product, packaging, and background sharp.

AI-generated sample images with fictional details. Effects are rendered with the same pixelation engine as the editor.

Quick steps

  1. 1Choose an image from your device.
  2. 2Select Entire Image or Selected Areas, then set the pixel size.
  3. 3Compare the result with the original and download it as PNG, JPG, or WebP.

What happens when you pixelate an image?

Pixelation replaces fine visual detail with larger blocks that represent nearby colors. As the blocks grow, small features become harder to distinguish and the image takes on a mosaic-like appearance.

The right strength depends on your goal. A creative effect can retain recognizable shapes, while hiding a face or line of text usually requires larger blocks and a careful review of the output.

Edit in your browser without uploading the image

The editor processes the image locally in your browser. You can preview and export the result without creating an account or sending the photo to an image-processing API.

Supported images can be up to 10 MB. If a file is too large or uses another format, save a copy as JPG, PNG, or WebP before opening it in the editor.

Before you download

  • Use Entire Image for a uniform effect and Selected Areas for privacy edits.
  • Increase the block size when small details remain recognizable.
  • Choose the output format that fits where you plan to use the image.

Edit your photo now

Use the pixelate an image online for free tool above to upload, edit, and download directly on this page. No account is required, and the downloaded image does not include a watermark.