CSS Specificity Calculator

Professional CSS selector specificity calculator — live analysis, comparison, history, dark mode.

CSS Specificity Calculator is a simple and efficient tool designed to help developers understand how CSS selectors are prioritized by the browser. This extension allows users to input any CSS selector and instantly calculate its specificity value by breaking it down into inline styles, IDs, classes, attributes, and element selectors. It helps developers debug styling issues, avoid conflicts, and write more predictable and maintainable CSS. The tool works in a clean and minimal interface, focusing only on calculating and displaying specificity results without modifying any web pages or accessing unnecessary data. Key Features Calculate CSS selector specificity instantly Breakdown of specificity values (IDs, classes, elements) Clean and easy-to-use interface Useful for debugging CSS conflicts Lightweight and fast performance Privacy This extension does not collect, store, or share any personal or browsing data. All calculations are performed locally in the browser.