Create and manage CSS custom properties (variables). Copy ready-to-use CSS code.
Build a set of CSS custom properties (CSS variables) that you can use across your entire stylesheet. Define colors, spacing, fonts, and more in one place, then reuse them throughout your CSS.
:root {
--primary-color: #6366f1;
--secondary-color: #ec4899;
--spacing-unit: 8px;
--border-radius: 8px;
--transition-speed: 300ms;
}.button {
color: var(--primary-color);
border-radius: var(--border-radius);
}Free CSS variables generator that helps you build a complete set of CSS custom properties for your project. Create color variables, spacing units, typography scales, transition timings, and any other design tokens. Choose between global (:root) scope for site-wide variables or custom selectors for theme-specific variables. Add unlimited variables, name them semantically (like primary-color, spacing-base), and set their values. See a live preview of generated CSS code with proper syntax. Copy individual variables or the entire CSS block to use in your stylesheets. The tool generates clean, production-ready CSS custom property declarations that integrate seamlessly with modern design systems. Perfect for building design systems, theming, dark mode support, and maintaining consistency across large projects. All processing happens in your browser - completely free, no signup, no limits.
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