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Online SEO Auditor & Generator

Canonical Tag Generator

Create a correct rel=canonical tag and validate the URL.

100% Browser-Based — HTML and text stay on your device. Optional URL fetch runs from your browser only (CORS may block some sites).

Tool Options

Results

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How It Works

SEO auditor + generator workflows that run in your browser.

1
⎘

Paste, upload or fetch

Paste HTML/text, upload a file, or enter a URL for best-effort browser fetch.

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2
⚙

Analyze & score

Validation, SEO score and fix suggestions run locally in your browser.

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3
⇩

Copy or download

Export HTML, JSON, CSV, TXT or print the report instantly.

Zero server upload — generate, validate and fix suggestions stay on your device.

About Canonical Tag Generator

Generate a valid HTML canonical link tag for self-canonical or cross-domain canonical URLs with quick validation. Built as a mini SEO audit workflow: generate or analyze, validate, score, then copy ready-to-use code.

FAQs

No. SEO tools process content in your browser. FreeConverter servers never receive your page HTML or text.

Browser fetch is best-effort. Many sites block cross-origin requests (CORS). If fetch fails, paste HTML or upload a file instead.

Yes. FreeConverter.app browser SEO tools are free to use.