Duotone Pro
Compare original vs. duotone in real-time.
Upload an image
Drag across the image to compare
Compare original vs. duotone in real-time.
Upload an image
Drag across the image to compare
Duotone Pro maps every pixel in your image onto a two-colour gradient based on brightness — dark areas shift toward your shadow colour, light areas toward your highlight colour — producing the bold, high-contrast duotone look popular in editorial photography, album art, and social graphics. Drag across the before/after slider to compare the original and the effect in real time.
Pick your own shadow and highlight colours with the colour pickers, or start from one of four curated theory presets and adjust from there. Export the final result as a PNG once you're happy with it.
Yes, completely free with no account or usage limit.
It's a two-colour treatment where every pixel's brightness is mapped onto a gradient between a shadow colour (for dark areas) and a highlight colour (for light areas), replacing the image's original colours entirely with that two-colour scale.
Yes — the two colour pickers under "Mapping Colors" let you set any shadow and highlight colour directly; the presets are just a quick starting point.
No. The duotone effect is calculated locally in your browser using the Canvas API — your image never leaves your device.
Your finished duotone image downloads as a PNG.