Hreflang tags tell search engines which URL to serve for which language and region — but hand-writing a full reciprocal set across many languages is tedious and error-prone. This tool builds and validates the complete set for you.
What Is the Hreflang Tag Generator?
Enter your language codes (with optional region, like en-US) paired with their URLs, optionally add an x-default fallback, and the tool generates the full set of <link rel="alternate" hreflang="..."> tags — while validating language code format and flagging duplicate codes.
How to Use It
- Open the tool at /tools/hreflang-generator.
- Add a language/URL pair for each localized version of your page.
- Optionally enable
x-defaultand set its fallback URL. - Copy the generated
<link>tags into the<head>of every language version of the page.
Key Features
- ISO 639-1 / ISO 3166-1 format validation, flagging malformed language codes as you type.
- Duplicate-code detection, since search engines require each hreflang value to map to exactly one URL.
- x-default support for a fallback URL shown to unmatched languages/regions.
- Instant, copyable output, ready to paste directly into HTML
<head>or adapt into an XML sitemap.
When to Use This Tool
- Launching a multilingual or multi-region site and need correct hreflang annotations from day one.
- Auditing an existing implementation for duplicate or malformed language codes.
- Adding a new language version to an existing set without breaking reciprocity.
Try It Now
Open Hreflang Tag Generator directly, or press ⌘K and type the tool name from anywhere on the site.
Part of the Generators collection on WebdevToolbox — free, browser-based developer tools with no login required.