Batch Create Two-color Images
Quickly convert multicolor images to professional duotone effects in batch. Perfect for artistic filters and branding.
Drag & Drop Images Here
Supports PNG, JPG, WEBP and more. Max 10MB per file.
Or try with these examples
Loaded Images
Real-time duotone preview
Settings
Dither Effect
Achieve more accurate shadows and gradients.
Batch Apply
Same settings for all images
No login required for first 1000 images. Should be enough for you. If not, contact me and I'll add more for free.
Professional Duotone Effects Made Simple
Our Two-color Image Converter uses advanced color mapping algorithms to transform your photos into striking duotone masterpieces. Whether you're looking for a classic sepia look, a modern cyberpunk aesthetic, or brand-consistent imagery, our tool provides the precision you need.
- Auto Color Detection: Our smart algorithm analyzes your image to find the most dominant highlights and shadows.
- Professional Dithering: Multiple error-diffusion algorithms like Floyd-Steinberg and Atkinson for smooth gradients.
- Batch Processing: Convert dozens of images at once with consistent settings.
Fast
Secure
Batch
Cloud-Free
Frequently Asked Questions
What is a duotone image?
A duotone is an image composed of two colors, usually a dark tone for shadows and a light tone for highlights. It's a popular design technique used to create atmospheric and stylistically consistent visuals.
How does auto color generation work?
Our tool analyzes the color distribution of your image using a clustering algorithm to identify the two most representative colors, ensuring your duotone effect looks natural and balanced.
Why should I use dithering?
Dithering helps prevent banding in gradients by adding a subtle pattern of noise. This creates the illusion of more shades than are actually present in a two-color palette.
Is my data safe?
Yes! All image processing happens locally in your browser. Your images are never uploaded to our servers, ensuring total privacy and security.