Create a Binary PNG
Map every pixel down into an aggressive two-color binary mask. 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 Create a Binary PNG
- 1. Upload your PNG. Add the photo or graphic you want reduced to two colors, such as photo.png. Images with clear light and dark areas produce the most readable result.
- 2. Pick your two colors and dithering. Set Dark color and Light color to the two tones you want, such as navy and cream, and turn on Dither to blend them with a pattern instead of a hard cutoff.
- 3. Download the two-tone PNG. Save the resulting image, rendered in just your two chosen colors, and use it as a poster, print design or stylized graphic asset.
When to use Create a Binary PNG
Create a Binary PNG maps every pixel down into an aggressive two-color binary mask, replacing the full tonal range with just a dark and a light shade you choose. Create a Binary PNG suits duotone poster designs and stylized graphics where a full grayscale or color range is not the goal.
- Designing a duotone concert poster. A designer wants a bold, high-contrast poster look and maps photo.png down to navy and cream to get a striking two-tone print aesthetic.
- Preparing art for screen printing. Someone getting a design screen printed onto t-shirts needs artwork reduced to exactly two ink colors, matching the shop's printing constraints.
- Creating a stylized brand asset. A brand team wants a signature photo treatment that always renders in the two colors from their palette, giving every image a consistent, recognizable look.
Examples
Two-tone poster
Input
photo.png + navy and cream
Output
photo.png rendered in just those two colors
About the Create a Binary PNG tool
Create a Binary PNG runs as plain JavaScript in your browser tab, with no server behind it. Map every pixel down into an aggressive two-color binary mask. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's PNG Tools section, 108 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 3 settings, including Dark color, Light color and Dither, and the result refreshes the moment you change one. 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 Create a Binary PNG 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 Create a Binary PNG accept?
It accepts PNG images. 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.