Canonical URL Checker

Check canonical URLs online for free. Verify canonical tags are correct to prevent duplicate content SEO issues.

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Coming SoonSEO & Web Tools

The full version of Canonical URL Checker is being built right now. We add new fully functional tools every week. In the meantime, you can use the basic workspace below.

100% private — runs in your browser

Input

Output

About Canonical URL Checker

Check canonical URLs online for free. Verify canonical tags are correct to prevent duplicate content SEO issues.

This tool is completely free and runs 100% in your browser. Your data is never uploaded to any server — everything is processed locally on your device for maximum privacy and speed.

About Canonical URL Checker

Check canonical URLs online for free. Verify canonical tags are correct to prevent duplicate content SEO issues.

Features

100% free with no sign-up required
Runs entirely in your browser for full privacy
No data stored, no files uploaded to servers
Works on desktop and mobile devices