Color CSS Variable Theme Diff
Compare two sets of CSS color variables and list changed, added, and removed tokens.
What the Color CSS Variable Theme Diff does
Compare two sets of CSS color variables and list changed, added, and removed tokens. Changing --brand-600 from blue to indigo appears as a changed token while a new --accent appears as added Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: The parser expects simple --token: value declarations and ignores complex nested CSS.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the Color CSS Variable Theme Diff do?
Compare two sets of CSS color variables and list changed, added, and removed tokens. Changing --brand-600 from blue to indigo appears as a changed token while a new --accent appears as added.
What should I keep in mind?
The parser expects simple --token: value declarations and ignores complex nested CSS
Does it upload my input?
No. The Color CSS Variable Theme Diff runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
Practical utilities for front-end design and implementation work.