Free online image tool

Pixelate Image

Apply a pixel art style effect to an image with adjustable block size.

Upload imageJPG, PNG, and WebP are processed locally in your browser.

Pixel size 12px

Pixelated preview

Preview appears here

Upload an image to start processing.

What is this tool?

Pixelate Image turns a photo or graphic into a blocky mosaic-style version by grouping pixels into larger squares. It can be used for creative pixel art effects, retro-style thumbnails, privacy-friendly previews, screenshots, design experiments, and visual abstraction.

Pixelation can reduce recognizable detail, but it should not be treated as secure redaction. If you need to hide private information such as names, addresses, license plates, or faces, cropping or fully covering the information is safer than relying only on pixelation.

The strength of the effect matters. Small pixel sizes create a subtle stylized texture, while large pixel sizes make the subject harder to recognize. Preview the output at the final display size before downloading, especially for social media or presentation use.

How to use Pixelate Image

Follow these steps to process your image locally in the browser and download the result.

Step 1
Upload the image you want to pixelate.
Step 2
Adjust the pixel size or effect strength.
Step 3
Preview whether the subject is still recognizable.
Step 4
Use a stronger effect for abstract visuals or a lighter effect for style.
Step 5
Download the pixelated image copy.

Key features

Creates a mosaic or pixel art style effect.
Useful for creative thumbnails, retro visuals, and abstract previews.
Adjustable strength for subtle or dramatic pixelation.
Can reduce visible detail in screenshots and photos.
Exports a new edited image while keeping the original file.
Browser-based processing with no account required.

Supported formats

Pixelate Image works with common browser-readable formats such as JPG, PNG, and WebP. Very large images may take more memory to process in the browser.

Common use cases

Clean up screenshots, product photos, profile images, document visuals, or social graphics.
Apply one focused edit without opening a full design application.
Preview a local browser-rendered result before exporting a new copy.
Prepare images for publishing, sharing, documentation, ecommerce, or internal review.

Limitations to know

Browser canvas export can slightly change compression, metadata, color handling, or file size compared with the source.
Advanced professional editing features such as layered design, raw photo editing, and AI restoration are outside this tool's current scope.
Very large images can require more device memory and may process more slowly on phones or older computers.
The exported file is a new browser-generated copy, so you should keep your original file if you may need to edit it again.

Privacy note

ImageToolkit is designed to handle this task in your browser whenever the selected file type is supported. The image you choose is processed on your device for preview and export, and ImageToolkit does not require an account or intentionally upload the original image to an ImageToolkit server for these browser-first tools.

Related image tools

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Frequently Asked Questions

Can pixelation hide private information?+

It can reduce visibility, but it is not guaranteed secure redaction. For sensitive data, crop or fully cover the information.

What pixel size should I use?+

Use smaller blocks for a subtle style and larger blocks when you want a stronger mosaic effect.

Is pixelate the same as blur?+

No. Blur softens detail smoothly, while pixelation replaces detail with visible square blocks.

Can I use this for pixel art?+

Yes, it can create a pixel-art-inspired look, though it is not a full pixel art editor.

Is my image uploaded to a server?+