Duotone Effect
Create clean, high-contrast duotone images in your browser. Choose Shadow & Highlight colors (or generate palettes), tune the balance, preview instantly, and download in the original format.
Open toolBrowser-based utilities
137 free tools for images, text and data. All running entirely in your browser.
137 tools No uploads No accounts
Create clean, high-contrast duotone images in your browser. Choose Shadow & Highlight colors (or generate palettes), tune the balance, preview instantly, and download in the original format.
Open toolConvert mixed image batches into WebP, AVIF, JPEG, PNG, GIF, or ICO directly in your browser with queue-based processing, per-file progress, and ZIP export.
Open toolCompress images to progressive JPEG online by converting PNG, JPG, or WebP files into optimized progressive JPG output. Adjust quality, optionally resize by max width, batch-process multiple images, paste from clipboard, and download individual files or all compressed images as a ZIP directly in your browser.
Open toolCreate custom QR codes for links, text, phone calls, SMS, and email in seconds. Customize colors, dots, corners, background shape, add a center icon, and download as SVG, PNG, JPEG, or WebP.
Open toolTransform text into SEO-ready slugs or naming formats. Switch between kebab, snake, camel, Pascal, and title case with instant, live output.
Open toolCount words, characters, whitespace, sentences, paragraphs, and reading time instantly in your browser. Paste any text to get accurate text statistics, top word frequency, and fast live analysis.
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6 min read
Learn how to use effects—like Blur, Tint, and Duotone—to make photos work for your layout. Move beyond basic adjustments to create better text contrast, brand consistency, and visual focus.
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Learn what the duotone effect is, how it works, and why using two simple colors can instantly transform busy photos into clean, consistent visuals that improve readability and elevate your website design.
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