Free Online Hreflang Tag Generator
An hreflang generator turns a list of localized URLs and language-region pairs into valid rel=alternate hreflang link tags, validating the ISO codes.
Your data is processed entirely in your browser and never sent to any server.
How to Use This Tool
- Enter each localized URL with its language code (e.g. en, en-US, fr-CA) on the left.
- Add an x-default row pointing to your fallback or global page.
- Watch for inline validation — invalid ISO language or region codes are flagged immediately.
- Copy the generated <link rel="alternate" hreflang> block.
- Paste the identical block into the <head> of every alternate page so the set is reciprocal.
What Is a Hreflang Tag Generator?
hreflang annotations tell search engines which language and regional version of a page to serve to which users. Each annotation is a <link rel="alternate" hreflang="..." href="..."> tag whose hreflang value is a two-letter ISO 639-1 language code, optionally followed by a hyphen and a two-letter ISO 3166-1 Alpha-2 region code — for example en, en-US, es, fr-CA. The special value x-default marks the fallback page for users whose language or region matches none of the alternates, typically a language selector or global homepage.
This generator validates each code you enter against the ISO 639-1 language list and ISO 3166-1 region list, normalises casing (lowercase language, uppercase region), and emits a clean, copy-ready block of link tags for the entries that pass. It rejects invalid combinations so you do not ship tags that search engines will silently drop.
One rule the tool helps you follow: hreflang annotations must be reciprocal. Every language version should list all the others, including a self-referencing tag. Generate the full set once and place the identical block on every alternate page. The generator runs entirely in your browser — nothing is uploaded.
Frequently Asked Questions
What format do hreflang codes use?
What is x-default?
Do hreflang tags need to be reciprocal?
Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.
Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.
Related SEO Tools
Paste HTML to find its canonical link tag and flag common problems: missing tag, multiple canonicals, relative URLs or self-referencing mismatches.
Paste a page's HTML source to extract and grade its title, description, robots, canonical, Open Graph and Twitter tags with length and best-practice warnings.
Type a title, description and URL to see a live Google desktop and mobile snippet, with pixel-width truncation that matches how search results actually display.
Paste JSON-LD to detect every schema.org type, see all properties in a readable tree and check required and recommended fields for rich-result eligibility.
Paste HTML to extract its Open Graph tags, preview the link card and get warnings for missing required properties like og:title, og:image and og:url.