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Pixelate image

Choose a picture and it turns into big squares of colour straight away. Pixelate the whole picture, or switch to Areas I pick and drag a box over each part you want blocky.

Free, no sign-up. Runs in your browser. Nothing you type or upload is sent to us or stored.

At a glance

Block size at this preset
Strength 25 makes blocks 25 × 25 pixels when the image's long side is 1,200 pixels. Blocks grow with the image, so the look stays the same at any size.
Another name for it
Pixelation is also called mosaicing.
Source: petsymposium.org, checked 2026-11
Pixelated text isn't safe
Researchers recovered both short and long pixelated text with statistical models and concluded that mosaicing isn't a viable way to redact text.
Source: petsymposium.org, checked 2026-11
Free tools reverse it
Depix is a public proof of concept that recovers plain text from pixelated screenshots.
Source: github.com, checked 2026-11

Share the safe copy on your page

Put the cleaned-up image, a document or a whole gallery on a free Liite page. Images are shrunk and stripped of location data before they upload.

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Pixelate image: what to know

This page starts the blur image for this case. For every option and how to use it, see the blur image.

Choosing a block size

Low strength gives small blocks: the picture still reads as a photo, just rough. High strength gives a handful of large squares, where only the main colours survive. Move the slider and watch the preview until the shapes you want gone are gone.

For a retro pixel-art look, try a strength between 10 and 30 on the whole image. To hide something, go higher, and draw the box a little bigger than the thing you hide.

Pixelating text and ID numbers

Pixelation looks thorough, but text leaves a pattern in the blocks. Published research and free tools have read pixelated text back. For passwords, account numbers or addresses, switch to Solid box instead: it replaces the pixels completely.

Questions

What does it mean to pixelate an image?

To pixelate an image is to replace areas of it with large squares of a single colour, each the average of the pixels it covers. Details smaller than a square disappear. It's also called mosaicing.

Does pixelated mean blurry?

Not quite. A blur softens edges smoothly, while pixelation makes hard-edged squares. People also call a low-resolution photo pixelated when you can see its individual pixels.

Can I add grid lines between the pixels?

No. This tool makes the blocks but doesn't draw a grid over them. You can pick the block size with the strength slider.

How do I pixelate only part of a picture?

Choose Areas I pick, then drag a box over each part. Everything outside the boxes stays sharp.