Hreflang Tag Generator
Hreflang Tag Generator requires the number of nonblank URL lines to equal the number of comma-separated language values. Each URL must parse as absolute; language strings are escaped but not validated as language/region codes. The page emits one alternate link per pair and provides no x-default automation, self-reference requirement, reciprocal-link audit, canonical compatibility check, duplicate detection, sitemap mode, or live-page verification.
Runs locally — files stay on your deviceDoes this validate hreflang language codes?
No. It only pairs and escapes the entered strings.
Hreflang forms a reciprocal cluster
Each localized version should reference itself and the other alternates consistently; return links and canonical alignment help crawlers understand the cluster.
How it works
URLs are trimmed by line, languages split by commas, counts must match, each URL is serialized by new URL, and link tags are emitted.
Key concepts
Order creates pairing
First language maps to first nonblank URL.
Cluster completeness external
Generated tags for one page do not update its alternates.
When to use it
- Draft a small known language/region cluster.
- Generate explicit tags from a reviewed mapping.
- Spot URL/language count mismatch.
When not to use it
- Do not rely on it to validate BCP 47 codes.
- Do not omit reciprocal deployment.
- Do not combine non-equivalent pages simply because languages differ.
Worked examples
Two languages
- Input
Two URLs; en, da- Expected output
Two link tags
Order must agree.
Count mismatch
- Input
Two URLs; en- Expected output
Error
One code per URL is enforced.
x-default
- Input
Manual x-default value- Expected output
Accepted string
Semantic validation does not occur.
Common mistakes
Wrong order
Pairs silently follow positions. Correction: Review a mapping table first.
Missing return tags
Other pages are not changed. Correction: Deploy the full reciprocal cluster.
Conflicting canonicals
Tags can point across noncanonical pages. Correction: Audit canonical/hreflang together.
Best practices
- Use absolute canonical URLs.
- Include self and reciprocal alternates.
- Validate codes and deployed HTML with a crawler.
Related operations and differences
Canonical Tag Generator
Choose Canonical Tag Generator when you need to generate a canonical link element from a URL.; use Hreflang Tag Generator specifically for hreflang.
External Link Extractor
Choose External Link Extractor when you need to extract links pointing away from a hostname.; use Hreflang Tag Generator specifically for hreflang.
FAQ Schema Generator
Choose FAQ Schema Generator when you need to generate FAQPage JSON-LD from question-answer blocks.; use Hreflang Tag Generator specifically for hreflang.
Heading Structure Checker
Choose Heading Structure Checker when you need to list H1–H6 elements from pasted HTML.; use Hreflang Tag Generator specifically for hreflang.
HTML Link Extractor
Choose HTML Link Extractor when you need to extract href values from pasted HTML.; use Hreflang Tag Generator specifically for hreflang.
Image Alt Attribute Checker
Choose Image Alt Attribute Checker when you need to find image tags missing non-empty alt text.; use Hreflang Tag Generator specifically for hreflang.
Limitations and privacy
- No language-code validation, x-default helper, reciprocal/self check, canonical/status fetch, duplicate detection, sitemap output, or deployment.
- Pairing is positional.
The pasted text or URL is processed locally in this browser and is not fetched or submitted by the tool.
Frequently asked questions
Are blank URL lines ignored?
Yes.
Are language codes checked?
No.
Are return links verified?
No.
Can relative URLs be used?
No.