CSS Variable Helper
Paste CSS and have repeated values extracted into --custom-property declarations automatically.
Summary
Paste CSS and have repeated values extracted into --custom-property declarations automatically.
How it works
- Paste your CSS
- Click Extract Variables
- Review the generated :root block
- Copy updated CSS with var() references
Use cases
- Refactoring CSS to use design tokens
- Extracting a color palette from existing stylesheets
- Preparing CSS for theming with custom properties
Frequently Asked Questions
Last updated: 2026-07-01 ·
Reviewed by Nham Vu