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Hreflang Tag Generator

Generate hreflang tags for multilingual SEO.

x-default is the fallback shown when no listed language matches the user.

Generated hreflang tags
<link rel="alternate" hreflang="en-US" href="https://example.com/" />
<link rel="alternate" hreflang="es-ES" href="https://example.com/es/" />
<link rel="alternate" hreflang="fr-FR" href="https://example.com/fr/" />
<link rel="alternate" hreflang="x-default" href="https://example.com/" />

Place this complete set in the <head> of every page listed — hreflang must be reciprocal across all language versions.
Processed on your device. We never see your files.

How to use Hreflang Tag Generator

What this tool does

The Hreflang Tag Generator builds a complete, reciprocal set of <link rel="alternate" hreflang="..."> tags for a multilingual or multi-regional page. You add one row per language version — a language or language-region code and the URL for that version — and the tool assembles the full block of tags ready to paste into your <head>. Rows can be added and removed freely, an optional x-default row covers users your listed languages do not match, and the tool validates each code and URL as you type, flagging anything malformed inline so you never ship a broken tag.

A datalist of common codes — en, en-US, en-GB, es, es-ES, fr, de, ja, zh-CN, pt-BR, ar and more — speeds up entry. Everything runs in the browser.

Why it matters for SEO

If your site serves more than one language or country, hreflang is what keeps the right page in front of the right person. Without it, a search engine may show your English page to a Spanish speaker, or your US store to a UK shopper seeing the wrong currency and shipping. That mismatch hurts in two ways: users bounce because the page is not for them, and search engines may treat your translated pages as duplicates of each other, since the layout and structure are near-identical.

Correct hreflang resolves both problems. It signals that the pages are deliberate alternates rather than duplicates, so each can rank in its own market without cannibalising the others, and it lets the engine swap in the locally appropriate version in the results. The payoff is higher relevance, lower bounce rates from international traffic, and cleaner indexing of every language variant — which is why hreflang is essential infrastructure for any serious international SEO setup.

How to use it

  1. For each language version, fill in a row: the language or language-region code and the full URL of that version.
  2. Use the suggestions list as you type the code, or enter your own — the tool checks it against the valid xx or xx-XX pattern.
  3. Click “Add language” for more rows, or “Remove” to delete one.
  4. Keep the “Include an x-default row” toggle on and set the fallback URL, typically a global or language-selector page.
  5. Fix any row flagged in red — only valid rows are included in the output.
  6. Copy the generated block and paste the same complete set into the <head> of every page it references.

SEO best practices

Make the set reciprocal: every page in the cluster, including itself, must list every language version. Use absolute URLs, and point hreflang at the canonical version of each page so the two signals agree rather than conflict. Keep language and region codes valid — language first, optional region second. Add an x-default for users outside your targeted markets. Apply hreflang consistently by one method only; this tool uses HTML link tags, so do not also duplicate the same set in the XML sitemap or HTTP headers for the same pages. Update every page in the cluster whenever you add a new language.

Common mistakes to avoid

The most common failure is non-reciprocal tags — page A references page B but B does not reference A, so the link is ignored. Another is using a country code where a language code belongs, like us instead of en-US. Avoid pointing hreflang at non-canonical or redirecting URLs, and avoid mixing relative and absolute URLs. Do not forget to include each page’s self-reference in its own set. Do not omit the x-default and leave unmatched users to chance. Finally, remember this tool generates the markup; the tags only take effect once they are live in the <head> of every referenced page.

Privacy & your data

Every hreflang tag is built by JavaScript running in your browser. The URLs and language codes you enter are never sent over the network, never saved to a server and never logged or tracked — the tool makes no requests at all. Your rows exist only in the page while it is open and are cleared the moment you close or refresh the tab. That means you can safely prepare hreflang sets for staging environments, unreleased localisations and internal sites without any address or code ever leaving your device.

Frequently asked questions

What does hreflang actually do?
Hreflang tells search engines that several pages are the same content in different languages or regional variants, and which version suits which audience. When someone searches, the engine can then serve the page in their language instead of a version they cannot read. It does not boost rankings on its own — it improves which existing result is shown to which user, which raises relevance and click-through.
Why do hreflang tags have to be reciprocal?
Hreflang only works when the references confirm each other. If your English page points to the Spanish page, the Spanish page must point back to the English page, and both should also reference every other language version including themselves. A one-way reference is treated as unverified and is usually ignored, so the whole cluster of pages must list the same complete set of tags.
What is the x-default value for?
x-default marks the fallback page shown when none of your listed languages or regions matches the user — for example a global English page or a language-selector landing page. It is optional but recommended, because without it a user outside your targeted markets is left to the search engine's best guess. This tool can add the x-default row for you.
What format should the language code be in?
Use an ISO 639-1 language code on its own, such as 'en' or 'es', or a language plus an ISO 3166-1 region, such as 'en-GB' or 'pt-BR'. The language always comes first. Do not use a country code by itself — 'en-US' targets English speakers in the US, but 'us' alone is invalid. This tool flags codes that do not match that pattern.
Are the URLs and codes I enter kept private?
Yes. Every tag is generated by JavaScript running in your browser. The URLs and language codes you type are never uploaded, never stored on a server and never logged. The tool makes no network requests. When you close the tab the data is gone, so you can safely build hreflang sets for sites that are not live yet.

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