Image Pixelator

Pixelate Any Image in Your Browser

Resolution

Source Image

Drag & drop an image, or click here

Pixel Block Size: 10px

Status

Upload an image to get started

Error

Please select a valid image file.

Understanding Pixelation

Anonymize Faces & Details

Obscure a face, license plate, or other identifying detail with a classic mosaic effect.

Adjustable Block Size

Control how coarse the mosaic effect looks, from a light pixelation to a heavily blocky abstraction.

Retro Mosaic Style

Create a deliberate 8-bit/retro visual style for design or creative projects.

Local Processing

Pixelation happens entirely in your browser using the Canvas API — your image is never uploaded.

How Pixelation Works

This tool downsamples the image to a much smaller size (grouping pixels into blocks), then scales it back up using nearest-neighbor interpolation so each block renders as a single solid-color square. Larger block sizes downsample further, producing a chunkier mosaic effect.

Key Takeaways

Adjustable Blocks: Choose a block size from subtle to heavily blocky.
Nearest-Neighbor Upscale: Produces crisp, solid-color mosaic blocks rather than a blurry effect.
Client-Side Only: All pixelation happens locally in your browser — no data is ever sent to a server.

Image Pixelator - Free Online Tool