Pixelate Image
Choose an image and a block size to turn it into a mosaic of large pixels; the preview updates as you change the size.
- Runs in your browser
- Free to use
About this tool
Pixelate Image shrinks a picture to a grid of blocks and scales it back up without smoothing, producing the mosaic effect used for retro art, thumbnails and censoring. Pick the block size, watch the live preview and download in the original format, all in your browser.
For hiding a single region use Blur Image.
How to use it — quick steps
- 01
Add the image
Drop a PNG, JPEG or WebP file on the dashed area or choose it; a new file replaces the previous one.
- 02
Set the block size
From 1 (no effect) to 100 pixels; 8-20 gives the classic mosaic look, larger values hide more.
- 03
Press "Pixelate image"
The preview shows the result and updates when you change the size; download it in the original format.
Key features of this tool
Adjustable blocks
Any block size from 1 to 100 pixels, applied uniformly to the whole picture.
Live preview
Change the size and the preview re-renders immediately so you can tune the effect.
Files never leave your device
Reading, compressing and rewriting happen in your browser with the File API; nothing is uploaded to IPVoid.
Frequently asked questions
Can I pixelate just one area?
This tool pixelates the whole image; to hide a face or a licence plate selectively use Blur Image.
Is pixelation safe for anonymising?
With large blocks (20 px or more over a face) yes; small blocks can sometimes be reversed by comparison with the original.
Are my files or data uploaded?
No. The tool is plain JavaScript that runs in your browser; the files or data you provide here are never uploaded to our servers.