How to make a duotone image?

Select your file, choose the two colors, and export the duotone result.

What does a duotone effect do?

It remaps image shadows and highlights to two chosen colors, creating a bold graphic color grade while preserving tonal structure.

What colors work best for duotone?

Choose two colors with clear contrast. A darker color and a lighter color usually preserve image detail best.

What file formats can I export?

You can export as PNG, JPEG, WebP, TIFF, BMP, or HEIC.

Is this tool free to use?

Yes — completely free, no account needed. Your images are processed entirely in your browser and never uploaded to a server. Downloads have no watermarks.

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Duotone Effect Online

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What you can expect

Map image shadows and highlights to two custom colors with contrast-boosted lightness curves for rich, professional color grading.

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Online Image Color Adjustment Tools

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Online Color Effect Tools

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Frequently asked questions

How to make a duotone image?: Select your file, choose the two colors, and export the duotone result.
What does a duotone effect do?: It remaps image shadows and highlights to two chosen colors, creating a bold graphic color grade while preserving tonal structure.
What colors work best for duotone?: Choose two colors with clear contrast. A darker color and a lighter color usually preserve image detail best.
What file formats can I export?: You can export as PNG, JPEG, WebP, TIFF, BMP, or HEIC.
Is this tool free to use?: Yes — completely free, no account needed. Your images are processed entirely in your browser and never uploaded to a server. Downloads have no watermarks.

For developers

Use Duotone Effect from Python

Open the Jupyter notebook example to see how to run this tool from the BrushCue Python API, inspect the processing steps, and adapt the workflow for scripts or batch image jobs.

View Python notebook

Build your own

Duotone Effect Online

What you can expect

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Read more about Duotone Effect

BrushCue 1.2.8 Release Notes

Image Editing in Python: Introducing BrushCue v1.0.0

Frequently asked questions

Use Duotone Effect from Python

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