What if I just want to redact a small area?

Crop to the area first in another tool, pixelate the crop, then paste it back. This tool pixelates the whole image at once.

No. Each block stores a single averaged colour — the per-pixel detail is gone for good. Don't use heavier blurring as a security boundary either; pixelation can be cracked on small redactions if the block size is too small.

Image Pixelate

Image

Scales the image down to one pixel per requested block, then scales it back up with nearest-neighbour interpolation so the blocks stay crisp. Works on any size image in your browser; nothing is uploaded. Useful for anonymizing screenshots before posting, or for converting a photo into a pixel-art reference.

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Block size12pxFormat

Drop an imageor click to pick

Pixelation alone is not a security boundary for sensitive text — for that, paint over with a solid colour.

How to use

Drop or pick an image.
Drag the block size — small for subtle, large for blocky / censor-strength.
Pick an output format (PNG preserves transparency; JPEG and WebP can shrink the file).

Frequently asked questions

What if I just want to redact a small area?: Crop to the area first in another tool, pixelate the crop, then paste it back. This tool pixelates the whole image at once.
Is this reversible?: No. Each block stores a single averaged colour — the per-pixel detail is gone for good. Don't use heavier blurring as a security boundary either; pixelation can be cracked on small redactions if the block size is too small.