Free CSS Variables Generator
Generate CSS custom properties for design systems with our free tool. Colors, spacing, and more.
- Color variables
- Spacing scale
- Typography tokens
- Dark mode toggle
- Export options
Frequently Asked Questions
What are CSS custom properties?
Variables defined with --name syntax that can be used anywhere with var(--name). Unlike preprocessor variables, they cascade, can be changed at runtime, and work in media queries.
How do I organize CSS variables?
Group by type: colors (--color-primary), spacing (--space-md), typography (--font-size-lg). Use semantic names (--color-error) alongside value names (--red-500).
Can I change CSS variables with JavaScript?
Yes, element.style.setProperty('--name', value) changes variables at runtime. Great for themes, user preferences, and dynamic styling without class toggling.