Duotone Image Maker
Map a photo to two custom colors and blend the result with the original.
Drop your image here
Drag and drop, or choose a file below
JPG · PNG · WEBP
Up to 250 MB · One image at a time
Each image: up to 16 megapixels and 8192 px per side
Exports a full-resolution PNG with transparency. PNG files can be larger than the original.
Original
Choose an image or try the sample to see your preview here.
100% local processing
How to use
- 01
Choose a JPG, PNG or WebP image, or try the local sample.
- 02
Choose shadow and highlight colors, or a preset, then adjust the strength.
- 03
Process, compare with the original and download the PNG.
Details and tips
How it works
A luminance estimate maps dark pixels toward the shadow color and bright pixels toward the highlight color. Strength blends that mapping with the original RGB values. Alpha is preserved.
Made for everyday images
Create consistent poster imagery, cover art, profile graphics and campaign assets.
Frequently asked questions
Can I use my own brand colors?
Yes. Select both colors independently. The effect produces intermediate shades, not just two discrete ink colors.
Are my images uploaded?
No. These tools process image data on your device. Images and encoded text are not saved to your account.
Which images are supported?
JPG, PNG and WebP up to 8192 px per side and 16 million pixels. Pixel-based effects and comparison use a single still frame of animated files. Base64 conversion preserves original bytes and has a 5 MiB file limit.