Tool Hub

Pixelate / Mosaic

Pixelate or mosaic an image by adjustable block size — pure canvas, no dependencies

How to use

  1. Click 'Upload image' and select any image file from your device.
  2. Choose a pixelation strength: Low (8 px blocks), Medium (16 px), or High (32 px).
  3. Preview the mosaic result directly on the page.
  4. Click 'Download PNG' to save the pixelated image.
  5. All processing runs in your browser — nothing is stored or sent anywhere.

Examples

  • Uploading a portrait and selecting High strength produces bold 32-pixel blocks that obscure facial features for a censored thumbnail.
  • Uploading a screenshot and selecting Low strength applies a subtle 8-pixel grid that softens UI details without fully hiding them.

Verify outputs before using in production. No warranty — see Terms.