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Vizua

Pixelate Image Online — Free, Adjustable

Your files never leave your device

Drop images here

or click to browse

Supports: JPG, PNG, WebP

Frequently Asked Questions

How does pixelation work?

Vizua divides the decoded raster into square blocks using a rounded size from 2 to 50 pixels, averages the available RGB samples in each block, and fills that block with the average. Alpha is left unchanged; edge blocks can be smaller.

Can I use pixelation to hide faces?

Do not treat any block size as guaranteed anonymization or redaction. This tool pixelates the whole image, and identity can remain through coarse structure, context, metadata, reflections, or other clues. Use a purpose-built redaction workflow and verify the final file when disclosure creates risk.

What pixel size should I use?

The visible result depends on source resolution, subject scale, later resizing, and viewing distance. A value that obscures detail in one image may reveal it in another. Inspect the exported file at its largest intended display size; the control’s maximum is 50 pixels.

What you can do with Pixelate Image Online — Free, Adjustable

Apply a pixelation or mosaic effect with adjustable block size in your browser. Preview the result and download the processed image.

Pixelate Image Online — Free, Adjustable is designed for quick, repeatable work in a modern browser. The controls on this page let you prepare the result without installing software or creating an account.

How to use Pixelate Image Online — Free, Adjustable

  1. Select or drop the file you want to process, or enter the information requested by the tool.
  2. Review the available settings before processing, especially format, dimensions, quality, color, or other details that affect the output.
  3. Inspect the result, download the new file, and keep the original unchanged in case you need another version.

Private by design

Your files never leave your device. All processing happens locally in your browser.

Tips for better results

  • Start with the cleanest source available; a small, blurry, or heavily compressed file contains less detail to preserve.
  • Check dimensions and format before downloading so the result matches the site, app, printer, or platform where you will use it.
  • For large files, close unnecessary tabs and test one representative file before processing a full batch.
  • Open the downloaded result once before sharing it or replacing an original.

Where Pixelate Image Online — Free, Adjustable fits in a workflow

Use Pixelate Image Online — Free, Adjustable for one-off adjustments or as a preparation step before publishing, sharing, archiving, or continuing the edit in another application. When batch processing is available, validate the settings on a small sample first and then apply them to the remaining files.