Canonical Tag Generator

Generate a correct <link rel="canonical"> tag for any page, bulk-generate tags for a whole URL list, normalize www/https mismatches, and catch the cross-domain canonical mistakes that quietly hurt rankings — nothing is uploaded, everything runs right in your browser.

● Pro Version is Free for now

✓ Bulk Canonical Generator · URL Normalizer (www/https) · Cross-Domain Warning ·
✓ Self-Referencing Canonical Checklist

Day Night

🔗 Page & Canonical URL

Your Domain (optional — makes relative paths absolute)

Only needed if the Page URL or Canonical Target below is a relative path (like /blog/post) instead of a full URL.

Page URL

Self-Referencing Canonical

This page's canonical points to itself (the normal case)

🧮 Bulk Canonical Generator PRO

One page per line. Optionally add a comma or | then its canonical target — leave it off for a self-referencing page.

Paste at least one URL above and click "Generate All Tags".

✅ Self-Referencing Canonical Checklist PRO

Paste a list of URLs — e.g. exported straight from your sitemap.xml — one per line.

This is a planning checklist built entirely from the URL text you paste — it groups URLs that look like duplicates of each other (with/without a trailing slash, http vs https, www vs non-www, or extra query parameters) and flags which form looks most canonical. It does not fetch or crawl the live pages, so it cannot see what canonical tag is actually published there — verify in page source or Google Search Console before changing anything.

Paste a list of URLs above and click "Build Checklist".

⚙️ Format Options

Force HTTPS

Rewrite the generated href to https://

Remove Trailing Slash

example.com/page/ → example.com/page

Applied to the Generated Tag above and to Bulk Canonical Generator results.

🔀 URL Normalizer PRO

Preferred Protocol

Preferred Host

URL to Normalize

How to Use the Canonical Tag Generator

Generate a single tag, a whole batch at once, or audit a URL list for likely duplicates — all free and all in your browser.

Enter Your Page URL

Type the page's full URL, or a relative path like /blog/post plus your domain above it so the tool can make it absolute.

Pick Self-Referencing or a Target

Leave Self-Referencing on for the normal case, or switch it off and enter a different canonical target URL for pages like tracked or print versions.

Generate & Copy the Tag

Get a ready-to-paste <link rel="canonical"> tag, with Format Options to force https and strip trailing slashes along the way.

Switch to Pro for a Whole Site

Paste a list of page/canonical pairs to bulk-generate tags, normalize www/https mismatches, and get a cross-domain warning when a target points off-site.

Build a Self-Referencing Checklist

Paste a list of URLs from your sitemap into Pro's checklist to see which ones look like duplicates of each other and which URL looks most canonical.

Everything above runs entirely in your browser using plain JavaScript — no page is fetched or crawled, and nothing you type is ever uploaded to a server.

Specifications

Price Free

Data Processing Local only, in your browser — no URL is ever fetched or crawled

Simple Mode Single canonical tag, self-referencing or custom target, copy button

Pro Mode Bulk generator, www/https URL normalizer, cross-domain warning, self-referencing checklist

Built by SmallStudyTools.com

Found a bug or something not working right? Let us know and we'll fix it, every report helps make this tool better.

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