Pixelate Image Tool
Pixelate an image by block size and count exactly how many blocks that makes.
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How to use
- Enter the image size and block size
- Check the block count
- Preview the pixelated effect and download it
About this tool
Pixelation groups pixels into blocks, and larger blocks hide more detail. The tool divides your image size by the block size, rounding up, so the block count is exact. In the browser a gradient preview is shrunk and enlarged without smoothing to show the effect, which you can download. It is a visual effect, not a guarantee that hidden detail can never be recovered, so do not rely on it for sensitive information.
Frequently asked questions
Does pixelation make a face unrecognisable?
Larger blocks hide more, but pixelation alone is not a safe way to hide sensitive detail, since the original may still exist elsewhere.
Why round the block count up?
Because a partial block at the edge still counts as a block, so the total covers the whole image.