Validate HTML Meta Tags
Meta tags control how browsers, search engines, and social platforms interpret your pages. FixTools validates your HTML meta tag syntax and checks for commonly required tags like charset, viewport, description, and Open Graph properties.
- Cost
- Free forever
- Sign-up
- Not required
- Processing
- In your browser
- Privacy
- Files stay local
Validates meta tag syntax
Checks for required meta attributes
Identifies malformed charset declarations
HTML Tool
HTML Validator
All processing happens in your browser — your files are never uploaded to any server.
🚀Open HTML Validator100% Free · No account · Works on any device
How to use this tool
Paste your HTML head section or full page and validate. Meta tag errors and missing required tags are reported.
How It Works
Step-by-step guide to validate html meta tags:
- 1
Paste the page head HTML
Paste the full HTML head section including all meta, link, and script tags.
- 2
Validate
Click Validate to check for meta tag syntax errors and missing required tags.
- 3
Fix meta tag errors
Correct any attribute syntax errors, missing values, or incorrect meta tag structure.
- 4
Re-validate
Confirm all meta tags are valid.
Real-world examples
Common situations where this approach makes a real difference:
Auditing page head meta tags before a social campaign
Before launching a social media campaign, validate Open Graph meta tags to ensure your pages display correctly when shared on Facebook, Twitter, and LinkedIn.
Checking meta tags after CMS theme changes
Theme updates can reset or remove meta tags. Validate the HTML head section after any CMS theme change to confirm all required tags are still present.
When to use this guide
Use this when building or auditing page head sections to ensure all required meta tags are present, correctly structured, and free of syntax errors.
Pro tips
Get better results with these expert suggestions:
charset must be the first meta tag
The charset meta tag (<meta charset="UTF-8">) must appear within the first 1024 bytes of the document, before any content that uses non-ASCII characters.
viewport meta is required for mobile
All modern pages need <meta name="viewport" content="width=device-width, initial-scale=1">. Omitting it causes poor mobile rendering.
Open Graph tags need correct property syntax
Open Graph meta tags use property= not name=. For example, <meta property="og:title" content="...">. Incorrect attribute names cause OG tags to be silently ignored.
Frequently asked questions
Related guides
More use-case guides for the same tool:
Ready to get started?
Open the full HTML Validator — free, no account needed, works on any device.
Open HTML Validator →Free · No account needed · Works on any device