Drag and drop or click to upload a JPG, PNG, or WEBP file. The pixelate effect is applied immediately at the default block size.
Pixelate Image
Turn any photo into a pixelated mosaic — drag the slider to control block size from subtle to fully blocky. Free, no signup, no watermark.
How to Pixelate an Image
Drag the slider to set how large the pixel blocks are — from a fine 2px grid to 60px chunky blocks. The preview updates in real time.
Click Download to save the pixelated result as a lossless PNG at the original image dimensions.
How image pixelation works
The tool draws the image at a fraction of its original resolution (1 ÷ block size) onto a tiny offscreen canvas, then scales it back up to full size with image smoothing disabled. This forces the browser to use nearest-neighbour scaling, which produces sharp square blocks rather than a blurry interpolation. The result is a clean pixel grid where each block shows the average colour of that region of the original image.
Pixel size guide
2–5px gives a subtle grain or fine mosaic — the image is still clearly recognisable. 8–15px produces a classic retro pixel art look, similar to early video game graphics. 20–35px creates a coarser mosaic where individual subjects start to become unrecognisable, which is useful for privacy censoring. 40–60px gives an abstract block pattern where the original content is heavily obscured.
Common uses
Privacy and censoring — pixelating faces, licence plates, or sensitive information before sharing screenshots or photos. Pixel art style — convert photos to a retro 8-bit or 16-bit game aesthetic. Mosaic art — large block sizes turn photos into bold, graphic compositions. Thumbnails — a pixelated preview image creates curiosity and intrigue. Creative design — pixelation is a recognisable aesthetic in streetwear, poster design, and digital art.