Duotone Image Maker
Apply professional duotone effects to images with customizable shadow and highlight colors. Create Spotify-style image effects with instant preview, preset combinations, and high-quality PNG output for artistic and branding applications.
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What is Duotone Image Maker?
Duotone Image Maker maps an image's tonal range to two colors. Dark pixels take the selected shadow color, bright pixels take the highlight color, and midtones blend between them. The tool processes the image in the browser and exports the finished duotone result as PNG or JPG.
How does Duotone Image Maker work?
Duotone is a color-mapping technique that starts from image luminance. This tool converts each pixel to a grayscale intensity value, then interpolates between the chosen shadow and highlight colors. The result keeps the original composition while replacing the source color palette with a controlled two-color range.
Key Features
- Maps shadows and highlights to two colors
- Provides real-time preview while editing
- Includes preset duotone color combinations
- Download as PNG or JPG
- Supports drag-and-drop image selection
- Uses browser canvas processing for local editing
- Adjustable intensity
- Works with common image formats
Common Use Cases
Social media graphics
Create profile banners, post images, and thumbnails with a consistent two-color brand treatment.
Album and podcast covers
Apply duotone effects to portraits and artwork for album covers, podcast art, and playlist graphics.
Website hero images
Generate hero images that match a site's color palette while keeping the original photo structure.
Marketing materials
Produce brand-consistent imagery for flyers, ads, slide decks, and campaign assets.
How to Use This Tool
Upload an image
Drag and drop an image file or select one from your device.
Pick shadow color
Choose the color mapped to the darker parts of the image.
Pick highlight color
Choose the color mapped to the brighter parts of the image.
Download the result
Download the duotone image as a PNG or JPG file.
Pro Tips
- 1
Use Duotone Image Maker with high-contrast photos for clearer shadow and highlight separation.
- 2
Choose related colors for subtle editorial images and complementary colors for stronger contrast.
- 3
Start with presets to test the tonal mapping before selecting exact brand colors.
- 4
Keep the shadow color darker than the highlight color for readable facial details and object edges.
Frequently Asked Questions
What is a duotone effect?
Duotone is an image effect that maps the tonal range of a photo to two colors. Dark areas become one color, bright areas become another, and midtones blend between them.
Is my image uploaded to a server?
No. The image is decoded, color mapped, and exported in the browser.
What image formats are supported?
The tool supports common formats including JPG, PNG, WebP, and GIF. The finished duotone image can be downloaded as PNG or JPG.
Can I adjust the intensity of the effect?
Yes. The intensity control changes how strongly the selected duotone colors are applied to the image.
When should I use Duotone Image Maker?
Use Duotone Image Maker when a photo needs to match a brand palette, campaign color system, album cover, or editorial layout.
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