Developer

Schema Markup Validator

Free schema markup validator — scan HTML for JSON-LD blocks and microdata markers before you publish.

Important: By using this page, you agree that tool results, charts, About explanations, quick tips, and formulas are for informational use only — not professional, medical, legal, or security advice. You assume all risks of relying on them. See the full disclaimer below and our Terms of Service.

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How it works

Paste input or, where noted, a public https:// URL. Schema Markup Validator reports findings in plain language for quick review.

About Schema Markup Validator

Informational only — not professional advice. Report an error.

Need to validate schema markup strings? The free Schema Markup Validator on FindMeTool runs entirely in your browser — paste input, get output, copy or download results without creating an account or uploading files to a cloud server.

Developers, students, and analysts reach for developer tools like this when debugging APIs, cleaning data exports, preparing config files, or double-checking formats before deployment. Results update as you type for fast iteration.

Pair this tool with related utilities in the Developer category — use the links below to jump between formatters, validators, and converters that share the same workflow.

Quick tips

Paste a small sample first to confirm output before processing large files.
Bookmark this page for quick access during code reviews and incident response.
Explore more developer tools from the category page linked at the bottom.

This tool is part of the free Developer collection on FindMeTool. Explore more Developer tools or browse the full tool directory.

FAQ

How do I use Schema Markup Validator?

Open Schema Markup Validator, paste your HTML, XML, or text input (or enter a public https:// URL where supported), and read the structured report instantly.

Does Schema Markup Validator upload my page content to a server?

Most checks run in your browser. URL inspection features fetch public pages through our infrastructure only when you submit a URL.

Is Schema Markup Validator free?

Yes. Schema Markup Validator is free on FindMeTool with no account required.

Can Schema Markup Validator replace a full site audit?

No. It is a quick helper for developers and publishers — verify important changes with your normal QA workflow.

Important — informational use only

All tool results are automated outputs for general information only. They may be wrong, incomplete, outdated, rounded, or unsuitable for your situation. You are solely responsible for verifying results and for any decision you make based on them.

Tool results, charts, and explanatory content on this page — including About, How it works, examples, tips, formulas, and FAQs — are provided for general information and learning only. None of it is professional, medical, legal, or security advice.

By using this tool, you assume all risks of relying on its output and on-page explanations. To the fullest extent permitted by law, FindMeTool and Misconfigs LLC disclaim liability for any harm arising from such reliance.

To the fullest extent permitted by law, FindMeTool and Misconfigs LLC disclaim all liability for any harm, loss, or damages arising from use of this tool, reliance on its output or charts, or reliance on any explanatory content on this page (including About sections, tips, formulas, and FAQs), including errors, omissions, or outdated information. You assume all risks of such reliance. See our Terms of Service for assumption-of-risk, warranty disclaimers, and limitations of liability.

Think a result or explanation is wrong? We're not professionals — this app can make mistakes. Tell us so we can investigate.

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