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web validator

HTML Meta Validator

Validate document-level meta basics: charset and html lang.

Results

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Status
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Details
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Charset
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Lang
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Issues
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Rules & checks

Requires a charset meta tag (e.g., utf-8) or http-equiv content-type with charset.

Requires lang on the <html> element.

Runs fully client-side.

When to use it

  • QA templates for accessibility and SEO
  • Check CMS head output for required meta
  • Support teams reviewing user HTML snippets

Tips

  • Declare charset early in the head
  • Set html lang to the primary page language (e.g., en, es)

Examples

Valid

  • <html lang="en"><head><meta charset="utf-8"></head></html>

Missing lang

  • <html><head><meta charset="utf-8"></head></html> -> flagged

Missing charset

  • <html lang="en"><head></head></html> -> flagged

FAQs

Is anything uploaded?
No. Parsing is local and clears on refresh.

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