Why do I need a canonical tag?

It tells search engines which URL is the preferred version when duplicate or similar content exists at multiple URLs.

Should the canonical URL be absolute or relative?

Always use an absolute URL, including protocol and domain, for canonical tags.

Can a page be canonical to itself?

Yes, self-referencing canonical tags are common and recommended best practice.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Canonical Tag Generator

Generate canonical link tags to avoid duplicate content issues.

Support

Works Offline

Privacy First

No Login

No API

Force HTTPS

Strip tracking params

Lowercase host

Strip fragment

Trailing slash

URLs

One per line for batch normalisation

Canonical tags

https://Example.com/Page/?utm_source=news&fbclid=abc123#section

https://example.com/Page/

<link rel="canonical" href="https://example.com/Page/" />

About the Canonical Tag Generator

Enter a URL and optional settings like trailing slash or protocol normalization to generate a clean <link rel="canonical"> tag that tells search engines which version of a page is authoritative.

Examples

Normalize URL

http://Example.com/Page/

Output

<link rel="canonical" href="https://example.com/page" />

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-06 · Runs entirely in your browser