Image mosaic — pixelate a selected area
Apply a block mosaic to a rectangular part of a photo. Drag to select the region, adjust block size and preview the PNG.
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One static JPG, PNG, WebP or AVIF · up to 20 MB and 24 megapixels
Come si usa
- Choose the supported files from your device.
- Select the area and set the block size before applying the mosaic.
- Run the conversion, check the result, then download it.
Esempio
A 200 × 100 area with 20-pixel blocks is sampled to 10 × 5 cells.
Dettagli e limiti
Only the selected rectangle changes. Mosaic is not reliable redaction; remove sensitive information before sharing.
Conversion runs locally in your browser. This tool does not upload the chosen files.
FAQ
Can I add another mosaic area?
Download the result and reopen it to apply a second rectangle.
Are my files uploaded?
Conversion runs locally in your browser. This tool does not upload the chosen files.
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