Paste JSON-LD structured data and confirm it parses, declares a context and names real schema types — before Google sees it.
🔒 Your file is processed locally in your browser whenever supported. This tool runs entirely on your device — nothing you type or upload is sent to a server, logged, or stored.
No — validity is the entry ticket. Google decides eligibility per page, type and policy compliance.
Yes. Paste an array of blocks or a full @graph document — every node is checked.
| Platform | Supported | Offline | Local | Server | Network |
|---|---|---|---|---|---|
| WEB | Yes | Yes | Yes | No | Not required |
| PWA | Yes | Yes | Yes | No | Not required |
| ANDROID | Yes | Yes | Yes | No | Not required |
| IOS | Yes | Yes | Yes | No | Not required |
Check whether text is valid JSON and see the parsed type.
Generate SEO title, description and Open Graph tags for any page.
Minify or expand HTML, CSS and JavaScript and see the bytes saved. A whitespace and comment stripper for snippets — not a compiler.
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