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Hreflang Tag Generator

Create clean hreflang markup without memorizing syntax. Add language-region URL pairs, optional x-default, then copy HTML link tags or XML sitemap alternates for your international pages.

x-default URL

HTML hreflang tags

<link rel="alternate" hreflang="en" href="https://example.com/" />
<link rel="alternate" hreflang="es" href="https://example.com/es/" />
<link rel="alternate" hreflang="x-default" href="https://example.com/" />

XML sitemap variant

<xhtml:link rel="alternate" hreflang="en" href="https://example.com/" />
<xhtml:link rel="alternate" hreflang="es" href="https://example.com/es/" />

How it works

A short, focused workflow — input, run, read the result.

Add language URLs
Enter each language or region code with its matching page URL.
Generate markup
Copy the generated HTML tags or XML sitemap alternate markup.
Install and verify
Add the markup to your pages or sitemap, then verify with the hreflang checker.

What is an hreflang generator, and why does hand-rolled markup always break?

An hreflang generator builds the rel=alternate link tags (or sitemap alternates) for a multilingual site without you having to memorize the spec. The output is ready to paste into the HTML head, the HTTP header, or the XML sitemap.

Hreflang markup has three acceptable formats: HTML <link> tags inside <head>, HTTP Link response headers, and <xhtml:link> alternates inside an XML sitemap. Each format has its own syntax, and each requires the same cluster of rules: bidirectional links, a self-reference on every page, a valid x-default fallback, and ISO 639-1 / ISO 3166-1 Alpha 2 codes. Hand-rolling this for 8 languages and 200 pages is exactly how clusters break.The most common mistake is mixing formats across pages in the same cluster. Page A uses HTML hreflang and links to page B. Page B uses sitemap hreflang but does not link back. Google's cluster resolver treats this as a partial cluster and may ignore some entries. Another common bug is forgetting the self-reference, or using en-UK instead of en-GB (the spec uses the Alpha 2 codes, and the UK is GB).Our Hreflang Tag Generator takes your list of language-region URL pairs and outputs clean markup in any of the three formats. Add your locales, choose HTML or XML, and copy the result. The generator includes the self-referencing tag by default, adds an x-default if you provide one, and produces consistent syntax across every page in the cluster. Paste the output into your template and ship the cluster without a syntax error.

Output formats: HTML, HTTP header, XML sitemap

Letter ISO codes required for language-region pairs

x-default tag needed to catch unmatched users

What this hreflang tag generator produces

Every cluster rule, every output format, and every edge case the spec requires.

HTML link tag output — emits the <link rel="alternate" hreflang="..." href="..."> tags ready to paste into the <head>. Includes the self-reference by default.
XML sitemap alternates — outputs the <xhtml:link rel="alternate"> markup for embedding hreflang inside sitemap.xml. Required when the HTML head is not writable.
HTTP header format — generates the Link: <url>; rel="alternate"; hreflang="..." header string for non-HTML resources like PDFs and images.
Self-referencing tag — adds the current page URL to its own hreflang set. A missing self-reference is the #1 cause of cluster invalidation.
x-default fallback — includes a hreflang="x-default" entry pointing to a generic page. Required for users whose language-region is not in the cluster.
Locale code validation — warns on invalid codes like en-UK, fr-FR (correct), or de_de (underscore). Output only contains spec-compliant language-region pairs.
Bidirectional cluster map — shows you the full set of links each page should include, so you can confirm return links before you ship the markup.
Bulk page generation — generates a separate hreflang block for every page in your URL list, all with the same cluster structure and consistent syntax.

Who uses this hreflang tag generator

International SEOs, devs, and content teams building multilingual sites that need clean cluster markup from day one.

In-house SEOs

You're launching a 6-language site next month and need a clean hreflang cluster across 200 pages, with the right codes and the x-default.

Generate the HTML markup for all 6 locales, paste it into the CMS template, and ship the launch without a single cluster error.

Developers

You need to add hreflang alternates to an XML sitemap for a 500-page multilingual site and don't want to write the namespace by hand.

Generate the sitemap alternates once, drop them into the build, and let the static site generator render them on every page.

Agencies

You're delivering hreflang markup to 3 client sites and need to standardize the cluster structure across all of them.

Use the same generator workflow for each client, ship consistent markup, and skip the per-project syntax debugging.

Enterprise SEOs

You're migrating a 30-language site from subdomains to subdirectories and need hreflang for both HTML head and HTTP headers (for PDFs).

Generate both formats from the same input, ship the HTML tags in the head, and serve the PDF header on the document endpoints.

Migration leads

You're consolidating 4 ccTLDs into one .com and need to keep the hreflang cluster intact across the new URL structure.

Generate the new cluster using the new paths, validate each block, and ship the launch with the cluster in place from day one.

Content managers

You publish in 3 languages and your CMS doesn't auto-generate hreflang. You need a fast way to build the tags for a new blog post.

Add the 3 localized URLs to the generator, copy the output, paste it into the head, and move on to the next post.

Related glossary terms

Want a deeper dive? These glossary entries explain the concepts behind this tool.

Frequently Asked
Questions

Everything you need to know about hreflang tag generator and technical SEO.

The Hreflang Tag Generator helps SEOs diagnose a specific technical SEO workflow directly in the browser. It is built for quick audits, QA checks, and pre-publish validation.

Yes. The tool is free to use on SERPView with no signup required. URL-fetching tools use conservative limits to keep checks fast and respectful.

No. The tool fetches the URL for the current analysis and returns the result. We do not store page content or use checked pages for training.

Use it during technical SEO audits, site launches, migrations, content QA, or whenever a page behaves differently than expected in search.

No. It is a focused free check for one workflow. For large sites, use it alongside a crawler and Google Search Console to prioritize fixes.

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