Design Tools
HEX/RGB, contrast checkers and aspect ratio helpers for designers.
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Aspect Ratio Calculator
Calculate width, height or ratio for images and video frames.
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Color Contrast Checker WCAG
Check foreground/background contrast ratio for WCAG AA/AAA compliance.
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HEX to RGB Converter
Convert HEX color codes to RGB values with CSS-ready output.
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Screen DPI Calculator
Estimate PPI/DPI from screen resolution and diagonal size.
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CSS Gradient Preview Helper
Preview linear gradient CSS with two brand colors.
Tools FAQ
Are Design tools free on QuizDaily?
Yes. Every tool in this category is free to use with no signup required.
Do these tools work on mobile?
Yes. All QuizDaily tools are mobile-friendly for Android and iPhone.
Is my data private?
Image tools process files in your browser. Calculator inputs stay in your session and are not stored as personal profiles.