What is a canonical URL?

A canonical URL is the single preferred address for a page. Adding a rel=canonical tag tells search engines which version to index when the same content is reachable through several URLs, avoiding duplicate-content dilution.

Which tracking parameters get stripped?

When enabled, it removes utm_* parameters plus common click and session IDs like gclid, fbclid, msclkid, mc_cid, ref and session identifiers, while keeping genuine content parameters.

Is my URL sent to a server?

No. Normalisation and tag generation happen entirely in your browser, so your URLs are never uploaded.

Canonical URL Builder

Build a clean canonical URL and tag

Generate the canonical URL for a page and the matching <link rel="canonical"> tag. Choose the normalisation rules that match your site: force HTTPS, lowercase the host, drop the www. prefix, strip tracking parameters like utm_* and gclid, remove the #fragment, or trim a trailing slash.

Consistent canonical URLs prevent duplicate-content issues and consolidate ranking signals onto one address. Everything runs in your browser — nothing is uploaded.