Pixelate Image Tool

Apply a pixelate (mosaic) effect to any image by setting the block size. Larger blocks create a more pronounced retro look; smaller blocks add a subtle texture. Commonly used to censor or anonymise faces and text in screenshots, or as a creative stylistic effect for thumbnails and social graphics. Download as PNG.

All processing happens in your browser. No data is sent to any server.

Frequently Asked Questions

How does pixelation work?
The tool scales the image down to a very small size (based on the block size), then scales it back up to full resolution with smoothing disabled. This creates the blocky, pixel-art look where each 'pixel' is a solid colored square matching the block size you set.
What block size should I use?
2–5px produces a fine pixelation that slightly obscures detail. 10–20px creates a recognizable retro pixel art effect. 30–60px produces large, abstract color blocks. For privacy (like blurring faces), use at least 15–20px.
Can I use this to anonymize faces?
Pixelation can be used to obscure faces and sensitive information. However, for serious privacy protection, note that pixelation can sometimes be partially reversed with algorithms. For high-stakes use cases, use a more aggressive block size or a dedicated privacy tool.
Is my image uploaded to a server?
No. Processing happens entirely in your browser. Your image never leaves your device.

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