Mix Pixels in an Image
Randomly shuffle blocks of an image to scramble it. Runs entirely in your browser, so your data never leaves your device.
Drop a file here, or click to browse
Files never leave your device
Output
The result appears here as you type.
How to use Mix Pixels in an Image
- 1. Drop in an image. Add the photo or graphic you want scrambled, in any common format. The whole image is divided into a grid of blocks before shuffling.
- 2. Set the Block size. Enter a pixel value for Block size, a small block size scrambles finely and keeps rough shapes recognizable, a large block size makes the result far less recognizable.
- 3. Download the scrambled image. Click generate and download the result. Every block keeps its original pixels but ends up in a randomly different position within the grid.
When to use Mix Pixels in an Image
Mix Pixels in an Image randomly shuffles blocks of a picture to scramble it, keeping the original colors and textures but destroying the overall composition. It suits privacy obfuscation or a deliberate abstract visual effect, controlled by how large each shuffled block is.
- Obscuring a subject without full pixelation. You want a photo's subject unrecognizable but with a more textured, less obviously censored look than a plain pixelated block, and shuffling small blocks achieves that.
- Creating an abstract art piece from a photo. An artist wants to turn a recognizable photo into an abstract pattern of scrambled color blocks as a standalone visual piece rather than a censoring technique.
- Testing an image classifier's robustness. You are evaluating whether an image recognition model relies on global composition or local texture, and shuffled-block versions of test images help probe that distinction.
Examples
Scramble the tiles
Input
photo.png + block size 8
Output
photo.png with its 8×8 blocks randomly rearranged
About the Mix Pixels in an Image tool
Mix Pixels in an Image runs as plain JavaScript in your browser tab, with no server behind it. Randomly shuffle blocks of an image to scramble it. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Image Tools section, 200 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Block size (px) setting, and the result refreshes the moment you change it. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Mix Pixels in an Image free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Are my files uploaded to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
Which files does Mix Pixels in an Image accept?
It accepts images in any common format (PNG, JPG, WebP, GIF and more). There is no file size cap imposed by a server; very large files are limited only by your device's memory.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.