Duotone image maker
Map your image to two chosen colors while keeping transparency. Download the full-resolution result.
Accepted files: .png,.jpg,.jpeg,.webp. Choose one file. Up to 20 MiB in total.
Files stay in this browser. Use still PNG, JPEG or WebP images, up to 20 MiB per file, 40 MiB combined and 16 million decoded pixels combined. Outputs total at most 100 MiB. Processing stops after 30 seconds. Source metadata and color profiles are not copied. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Duotone image maker
- Choose a still image.
- Choose the dark and light ink colors.
- Run the tool, compare the original and result, and download your PNG.
Useful next steps
Two colors, one brightness scale
Dark pixels move toward the dark ink and bright pixels toward the light ink. The blend uses encoded RGB luminance, not a print separation or color-managed process.
Keep the transparent areas
The output preserves decoded alpha values. RGB output bytes are encoded directly to avoid canvas export rounding.