📋 CSS Specificity Calculator
Calculate ID, class, and element specificity for CSS selectors. Runs in your browser.
Last updated: June 21, 2026 · By Λ
By Λ · Updated June 21, 2026 · ~3 min read
Why this Web & Design & Tools tool exists
CSS Specificity Calculator is a lightweight browser tool for calculate id, class, and element specificity for css selectors. It is built for quick checks, no sign-up, and no server roundtrip.
This page keeps your input on your device. The JavaScript runs inside the page and does not send your text, CSS, HTML, Markdown, URLs, or regex patterns to any backend.
Use it when you need a fast answer without opening a terminal, installing an extension, or pasting sensitive snippets into a third-party service.
How to Use This Tool
- Paste your snippet, selector, Markdown, URL pairs, or text into the input area.
- Click the primary action button or type live if the page supports live updates.
- Review the generated result in the output area.
- Copy the result when you are ready to use it in your project.
Key Features
- Runs fully in your browser.
- No account, upload, or backend required.
- Fast for quick developer checks.
- Useful for debugging, documentation, and content workflows.
Frequently Asked Questions
Does this tool upload my input?
No. Everything runs in this page using browser JavaScript.
Can I use the output in production?
Yes, but review it in context before shipping. This is a helper, not a replacement for project-specific testing.
Why build this client-side?
Developer snippets can contain private routes, tokens, or content. Keeping the work local avoids accidental leaks.