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Image / Local tool
Image Duotone Maker
Map image shadows and highlights to two custom colors, producing a downloadable duotone PNG entirely in the browser.
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Download resultProcessed result
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How to useHow to use Image Duotone Maker ⌄
What the tool actually does
Map image shadows and highlights to two custom colors, producing a downloadable duotone PNG entirely in the browser.
Reproducible example
Example inputExample file: product-photo.png (1600 × 1200)
shadows = #102A43; highlights = #F6C453The browser recalculates pixels using this rule: Map image shadows and highlights to two custom colors, producing a downloadable duotone PNG entirely in the browser. After checking the preview, download duotone.png; the source file is not overwritten.
- 1
Choose product-photo.png and confirm its dimensions and format first. JPEG, PNG or WebP; up to 30 MB and 8 megapixels.
- 2
Use the tool's actual settings (shadows = #102A43; highlights = #F6C453). The processor performs only this operation: Map image shadows and highlights to two custom colors, producing a downloadable duotone PNG entirely in the browser.
- 3
Compare source and result around the affected areas, transparent edges and transitions before downloading duotone.png.
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