Image PixelatePixelate images with adjustable block size for retro effects or privacy masking.
Image Pixelate
Pixelate images with adjustable block size for retro effects or privacy masking.
Upload Your Image
Drop or select an image to pixelate.
Set Block Size
Adjust the pixel block size from subtle to extreme pixelation.
Apply and Download
Click Apply, preview the pixelated result, and download.
What Is Image Pixelate?
Image pixelation replaces groups of pixels with a single averaged color, creating a blocky, mosaic-like effect. By dividing the image into square blocks and filling each block with the average color of its pixels, the tool produces the classic pixelated look.
Why Use Our Image Pixelate?
- Adjustable block size from subtle to extreme pixelation
- Privacy protection by pixelating faces and sensitive information
- Retro pixel-art aesthetic for design projects
- Fast client-side processing using Canvas API
Common Use Cases
Privacy Masking
Pixelate faces, license plates, or personal information in photos.
Retro Effects
Create pixel-art-style images with large block sizes.
Thumbnail Previews
Generate pixelated preview thumbnails for content.
Design Assets
Create pixelated backgrounds and textures for web design.
Technical Guide
Pixelation divides the image into blocks of size NxN pixels. For each block, the algorithm calculates the average RGB values then fills the entire block with that color using fillRect. Block size maps from 2px (subtle) to 50px (extreme).
Tips & Best Practices
- 1Block size 2-5 creates subtle pixelation, 10-20 for moderate, 30+ for heavy
- 2Larger images need larger block sizes to achieve the same visual effect
- 3Pixelation is irreversible — original detail cannot be recovered
- 4For privacy, use block sizes large enough to make details unrecognizable
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Image Crop
Crop images with a visual selection rectangle to remove unwanted areas.
Image ToolsFrequently Asked Questions
QIs pixelation reversible?
QWhat block size should I use for censoring?
QHow is pixelation different from blur?
QDoes pixelation reduce file size?
About Image Pixelate
Image Pixelate is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.