Image Pixelate
Pixelate an image into square blocks of a size you choose, from 2 to 200 pixels. The tool shrinks the picture so each block becomes one pixel, then enlarges it again with nearest neighbor sampling, which gives the crisp mosaic look of retro games and censored footage. Use it for pixel art effects, anonymizing screenshots, privacy blurs and playful graphics.
Frequently asked questions
How does pixelation work?
The image is reduced so that every block of the chosen size becomes a single pixel whose color blends the area it covers. It is then enlarged back to its original size with nearest neighbor sampling, so each of those pixels turns into a solid square block.
What block size should I use?
Small blocks of 4 to 8 pixels give a subtle retro look. Blocks of 10 to 20 pixels create a clear mosaic, and 30 pixels or more make faces and text unreadable. The default is 10 and the range is 2 to 200.
Does the image keep its size?
Yes. The result has the same width and height as your image. When the size does not divide evenly by the block size, the blocks on the right and bottom edges are cut to fit.
Can I pixelate only part of an image?
This tool pixelates the whole image. To hide a single area, extract it with the Image Extract Region tool, pixelate that part and place it back in an image editor.
Is pixelation safe for hiding sensitive information?
Large blocks make text and faces unreadable, but small blocks can sometimes be partly reversed for short text such as numbers. For passwords, account numbers and documents, use a large block size or cover the area with a solid shape.
Is transparency kept?
Yes. The alpha channel is pixelated together with the colors, and the result is saved as a PNG, so transparent areas stay transparent with blocky edges.
Why are the blocks perfectly sharp?
The enlargement uses nearest neighbor sampling, which copies each pixel without blending. That keeps the hard edges that define the pixel art look, and the PNG output adds no compression artifacts.
Which file formats can I upload?
JPEG, PNG, GIF, WebP, TIFF and AVIF images up to 5 MB are supported. Animated files are pixelated using their first frame.
How do I get a true low resolution pixel art image?
Pixelate with the block size you like, then use the Image Resize tool to shrink the result by the same factor. For example, a 1000 pixel image with 10 pixel blocks becomes a 100 pixel image with one pixel per block.
Is there a size limit?
Uploads can be up to 5 MB. Images larger than 4000 pixels on a side are scaled to fit 4000 pixels before pixelation.