Duotone Photo Online

Create a duotone photo locally in the browser with custom dark and light colors, effect strength and preview.

Need help with the calculation?
Files are not sent to a server. Processing runs in your browser, and the queue handles one file at a time so the device stays responsive.
Drop JPG/PNG/WEBP/AVIF files here or tap to choose several files
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How to use it

Upload photos, choose the dark and light color, and adjust strength. The browser builds the two-color result on your device.

Recommended settings

Pair a dark blue or green with a light yellow or pink for clear poster-style images. Lower the strength if faces become too flat.

Privacy

Your files are not uploaded to a server. The editor runs in your browser with local libraries from this site.

Limits

Large images can take longer on phones. If the browser slows down, process fewer files at once or choose a smaller output format.