Duotone Effect — Two-Color Artistic Filter
Your files never leave your device
Drop images here
or click to browse
Supports: JPG, PNG, WebP
Frequently Asked Questions
What is a duotone effect?
Duotone maps the shadows and highlights of an image to two custom colors. Dark areas become one color, bright areas become the other, with smooth transitions between them.
Can I choose my own colors?
Yes. Use the two browser color inputs to choose shadow and highlight RGB colors, or start from one of eight preset pairs. The algorithm linearly interpolates between them using each decoded pixel’s calculated luminance.
Which input and output formats are used?
The tool accepts JPG, PNG, and WebP and keeps that output family. PNG uses lossless coding for the rendered raster; JPEG and WebP are re-encoded at a requested quality of 0.92. Metadata, profiles, exact values, and hidden alpha data can change.
What you can do with Duotone Effect — Two-Color Artistic Filter
Map image luminance to selected shadow and highlight colors or a preset duotone pair. Preview the effect and export in your browser.
Duotone Effect — Two-Color Artistic Filter is designed for quick, repeatable work in a modern browser. The controls on this page let you prepare the result without installing software or creating an account.
How to use Duotone Effect — Two-Color Artistic Filter
- Select or drop the file you want to process, or enter the information requested by the tool.
- Review the available settings before processing, especially format, dimensions, quality, color, or other details that affect the output.
- Inspect the result, download the new file, and keep the original unchanged in case you need another version.
Private by design
Your files never leave your device. All processing happens locally in your browser.
Tips for better results
- Start with the cleanest source available; a small, blurry, or heavily compressed file contains less detail to preserve.
- Check dimensions and format before downloading so the result matches the site, app, printer, or platform where you will use it.
- For large files, close unnecessary tabs and test one representative file before processing a full batch.
- Open the downloaded result once before sharing it or replacing an original.
Where Duotone Effect — Two-Color Artistic Filter fits in a workflow
Use Duotone Effect — Two-Color Artistic Filter for one-off adjustments or as a preparation step before publishing, sharing, archiving, or continuing the edit in another application. When batch processing is available, validate the settings on a small sample first and then apply them to the remaining files.