Pixelate Image
Pixelate an image for a blocky, retro effect or to obscure detail. Upload an image, adjust the block size, and download the result.
Click to upload an image
Your file is processed entirely in your browser
Recommended Settings
Pro Tips
- •Larger block sizes produce a chunkier, more abstract pixelated look, while smaller blocks keep more of the original detail
- •Pixelation can obscure faces or sensitive details, though it isn't a guaranteed privacy measure for very large or high-contrast subjects
- •A block size around 8-15px gives a classic retro pixel-art feel for most images
- •The whole file is processed locally in your browser - nothing is uploaded anywhere
Most Popular
Most users start around 10px blocks and adjust until the effect looks right for their image size
When to Use This Tool
Give a photo a chunky, retro video-game inspired look.
Obscure a face or sensitive detail in an image with a blocky pixelated effect.
Create an abstract, low-detail placeholder image while a full-resolution version loads.
Add a pixelated texture as a creative element in a larger design or graphic.
How It Works
Read the uploaded image and decode it using the browser's native image support
Scale the image down to a small canvas based on the selected block size
Scale that small canvas back up to the original size with smoothing disabled, producing hard-edged blocks
Encode the result as PNG, ready to preview and download
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Canvas downscale/upscale technique for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
Is pixelation a safe way to hide sensitive information?
Use caution - at a low block size or with a high-contrast subject, pixelation can sometimes be partially reversed or guessed. For guaranteed redaction, cover the area with a solid shape instead.
How does the block size affect the result?
A larger block size groups more original pixels into each block, producing bigger, more visible squares and less recognizable detail.
Is my image uploaded to a server?
No. The entire process runs locally in your browser using the Canvas API. Your image never leaves your device.
What format is the output?
The result is downloaded as a PNG file, which preserves any transparency in the original image.
Can I pixelate just part of the image?
No, this tool pixelates the entire image uniformly. For selective pixelation, you'd need an image editor with layer or selection support.