Apply a two-color duotone effect to any photo — pick your shadow and highlight colors. Free, instant, no upload.
1. Upload Image
Upload an image to apply the Duotone effect
About the Duotone Effect Tool
Duotone maps every pixel's brightness onto a gradient between two colors you choose, creating the bold poster-style look popular in editorial design and album art. Runs entirely in your browser.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Premium Features & Batch Processing
Get started with our free tier for single-file operations. Upgrade to DCPixel PRO to unlock high-speed batch processing, local AI background removal, and advanced PDF controls.
Frequently Asked Questions
Does this permanently change my original file?+
No. The effect is applied to a copy rendered in your browser. Your original image on disk is never touched — you download a new file with the effect applied.
Can I adjust the intensity before downloading?+
Yes. Every slider updates the preview in real time, so you can fine-tune the effect before exporting the final image.
What format is the downloaded file?+
PNG, to preserve full quality and, where relevant, transparency.
User Reviews
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