Make PNG Monochromatic
Limit image tones to a single base hue. 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 Make PNG Monochromatic
- 1. Upload your PNG. Add the photo or graphic you want reduced to a single hue. It loads immediately so you can preview the duotone effect as you adjust it.
- 2. Pick the base hue. Use the Base hue color picker to choose the one color every tone in the image will be mapped to. Brightness is preserved, so lights and darks still read clearly in that single hue.
- 3. Download the monochromatic PNG. Save the result once the tint matches your design. Every pixel now falls somewhere on the shade scale of your chosen base hue instead of its original full-color palette.
When to use Make PNG Monochromatic
Make PNG Monochromatic maps every pixel's brightness onto shades of a single chosen hue, producing a duotone look while preserving the original tonal structure. Pick this tool whenever a full-color image needs to fit a limited, single-tone visual style.
- Matching a brand's single-color style guide. A brand kit specifies imagery should appear only in the brand's teal accent color. Mapping a full-color photo.png to that hue instantly produces an on-brand duotone version.
- Creating a cohesive photo gallery. A portfolio site wants every thumbnail in a section to share one unifying tint regardless of the source photo's original colors. Running each image through the same base hue keeps the grid visually consistent.
- Designing a print poster with limited ink colors. A screen-print run is limited to one ink color plus white. Converting the artwork to that single hue in advance shows exactly how the final print will look on paper.
Examples
Single-hue duotone
Input
photo.png
Output
photo.png mapped to shades of one color
About the Make PNG Monochromatic tool
Make PNG Monochromatic runs as plain JavaScript in your browser tab, with no server behind it. Limit image tones to a single base hue. 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 the Base hue 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 Make PNG Monochromatic 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 Make PNG Monochromatic 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.