Image Pixelate - Free Online Tool | PivaBox

Create pixel art and mosaic effects — adjustable block size

How to Use Image Pixelate

1. Click the upload area or drag and drop an image file to select your source image
2. Adjust the Pixel Size slider (2-64px) to control how large each pixel block is. Toggle Mosaic Mode to average colors within each block for a smoother look
3. Click Pixelate to apply the effect, then click Download to save your pixelated image as PNG

Frequently Asked Questions

What is Mosaic Mode?

In standard pixelation, each block takes the color of a single pixel (nearest-neighbor). Mosaic Mode averages all pixel colors within each block, producing a smoother, less jagged appearance.

Is Image Pixelate free?

Yes, PivaBox Image Pixelate is completely free. All processing happens in your browser using Canvas API with no server uploads.

What can I use pixelation for?

Pixelation is great for creating pixel art effects, censoring sensitive parts of images, creating retro game aesthetics, or generating mosaic-style artwork.