Image Pixelator
Pixelate the whole image or a rectangular region. Choose block size, output format, and where to apply the effect. Everything runs in your browser.
Drop an image here or click to upload
PNG / JPG / WebP — never leaves your device
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Image Pixelator Examples
Click any card to tryHow to Use Image Pixelator
To pixelate an image, upload it by clicking the upload area or dragging it onto the page. Use the pixel size slider to control the intensity of the pixelation effect — a larger pixel size creates a more heavily pixelated, mosaic-like appearance, while a smaller size produces a subtler effect.
The pixelated result updates in real time as you adjust the slider. When you are happy with the effect, click Download to save the pixelated image. This tool is commonly used to blur faces or sensitive information in screenshots, create retro pixel art effects, or produce mosaic-style artistic images.
Frequently Asked Questions
What is image pixelation? expand_more
Pixelation replaces blocks of pixels with a single averaged colour, giving the image a blocky, low-resolution appearance. The larger the block size, the more pronounced the mosaic effect.
Can I use pixelation to anonymise faces? expand_more
Yes. Pixelating a face effectively obscures identifying details and is a common technique for privacy protection in published images, documents, and screenshots.
Does pixelation permanently alter my original image? expand_more
No. The original image is held in memory and the pixelation is applied to the canvas display. You can adjust the pixel size freely and the downloaded file reflects your final settings.
What is the maximum pixel block size? expand_more
The slider typically allows block sizes from 2 pixels (subtle) up to 50 or more pixels (extreme mosaic). Very large block sizes make the image nearly unrecognisable.
Are my images uploaded to a server? expand_more
No. All processing is done locally in your browser using the HTML5 Canvas API. Your images never leave your device.
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