structured data · agent tools

Inspect the machine-readable web.

Inspect, validate and test structured data & agent tools — on any website. Everything runs locally; nothing is uploaded.

Manifest V3 vanilla JS local-only 0 tracking WebMCP

Add to Chrome — free See it in action ☕ Buy me a coffee

Available for Chrome, Firefox and Safari.

jsonld-inspector — active tab

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "Trail Runner GTX",
  "offers": {
    "@type": "Offer",
    "price": "149.00",
    "priceCurrency": "EUR"
  }
}
</script>

✓ 3 blocks✓ 0 errors 1 warningreadiness 87/100

// what it does

Everything a technical SEO checks — in one panel

// screenshots

Screenshots

The real extension UI, rendered in your language.