Duotone Image Maker
Turn any photo into a stylish duotone image by mapping shadows and highlights to two custom colors. Adjustable colors and one-click download. 100% private, no uploads.
Last reviewed by the Radiatus Cloud team
Drag & drop an image, or click to choose
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Map a photo to two colours
A duotone image maps the shadows and highlights of a photo to two chosen colours instead of black and white, producing the striking two-tone look used across modern design and album art. This tool turns any photo into a duotone using colours you pick, composing the result in your browser.
Why duotone works
A photograph has a full range of brightness, and duotone keeps that range while replacing the greyscale with a gradient between two colours: dark areas take one colour, light areas the other, and everything in between blends. Because it preserves the tonal structure of the image while unifying its palette, a duotone reads as intentional and on-brand in a way a full-colour photo often does not.
A brand-friendly effect, done locally
Duotone is popular precisely because you can push any photo into your brand colours and have a set of disparate images suddenly look like a family. Choosing the two colours yourself is what makes it useful rather than a fixed filter. The processing runs in your browser, so a client or stock photo is not uploaded to be recoloured.
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Frequently Asked Questions
What is a duotone image?
A photo whose brightness range is mapped to two chosen colours, with dark areas taking one colour, light areas the other, and a blend in between, rather than black and white.
Can I choose the two colours?
Yes. You pick both, which is what lets you push a photo into your own brand colours rather than applying a fixed filter.
Why does duotone look consistent across images?
Because it preserves each photo’s tonal structure while unifying the palette, so a set of different photos comes out looking like a coherent family.
Is my photo uploaded?
No. The processing runs in your browser, so a client or stock photo stays on your machine.
Can I download the result?
Yes. Choose the colours and export the duotone image.
Privacy & Security
All processing happens locally in your browser — nothing is uploaded.
How to Use
Upload an image and pick a shadow and highlight color. Download the duotone result.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
Related Tools
EXIF Viewer
ImageExtract hidden EXIF data (Camera, GPS, Settings) from images.
Favicon Generator
ImageGenerate favicons and app icons at every required size from one source image, with the exact HTML to reference them.
Placeholder Image Generator
ImageGenerate placeholder images at any size with custom colours and label text. Produced in your browser as downloadable files, no external hotlinking.