Extract JSON-LD structured data from any public page URL, HTML paste, or existing script tags. List Schema.org types, preview Open Graph and meta tags, and copy formatted blocks — free, no signup. Audit Schema.org markup for SEO rich results and for agents that read machine-readable facts from your pages.
List Schema.org @type values across blocks and @graph
Pretty-print JSON with one-click copy per block
Optional fetch of a public page URL (timeout + size limit)
Paste HTML or raw JSON-LD when fetch is blocked
Example Organization and WebApplication patterns from AnyPost
Example: AnyPost JSON-LD patterns
AnyPost uses Schema.org Organization site-wide and WebApplication on free tool pages — rendered as JSON-LD script tags in the page HTML, the same format this extractor finds on any site.
json
// Organization (site-wide)
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "AnyPost",
"alternateName": "anypost.md",
"url": "https://anypost.md",
"logo": "https://anypost.md/logo.png",
"description": "Turn social post URLs into clean, LLM-ready Markdown with a domain swap.",
"sameAs": [
"https://anypost.md"
]
}
// WebApplication (free tool page)
{
"@context": "https://schema.org",
"@type": "WebApplication",
"name": "AnyPost Compose",
"applicationCategory": "UtilitiesApplication",
"operatingSystem": "Web",
"url": "https://anypost.md/compose",
"description": "Free online markdown editor that converts writing into platform-ready social posts.",
"offers": {
"@type": "Offer",
"price": "0",
"priceCurrency": "USD",
"availability": "https://schema.org/InStock"
}
}
Why structured data matters
Search engines use JSON-LD to power rich results — FAQs, products, breadcrumbs, and organization panels. AI agents use the same machine-readable fields to learn product names, pricing hints, and article metadata without parsing navigation chrome. Pair a clean llms.txt index with valid JSON-LD so both crawlers and LLMs find consistent facts.
GEO & AI discoverability
The AnyPost JSON-LD extractor at anypost.md/free-tools/structured-data-extractor helps you audit Schema.org structured data on any public page. JSON-LD lives in script tags with type application/ld+json and describes entities such as Organization, WebSite, Product, FAQPage, or Article using schema.org vocabulary. Search engines use it for rich results; AI agents read the same machine-readable fields for product facts without parsing navigation chrome. The free tool accepts three honest inputs: a single public page URL (server fetch with an eight-second timeout and 512 KB cap—no third-party proxy), pasted HTML or View Source, or raw JSON-LD pasted in the browser so sensitive markup never leaves your device. It lists every block, collects @type values including @graph arrays, pretty-prints JSON for copy-paste, and summarizes common Open Graph and meta tags. Example output mirrors how AnyPost ships Organization and WebApplication JSON-LD on marketing pages. Pair with the llms.txt generator and XML sitemap builder on the free-tools hub for full AI and search discoverability.
Questions
What is JSON-LD structured data?
JSON-LD is JavaScript Object Notation for Linked Data — usually a script tag with type application/ld+json that describes your page using Schema.org types like Organization, WebSite, Product, or FAQPage. Search engines and AI agents use it to understand content without parsing free-form HTML.
How is this different from viewing page source?
Page source shows raw HTML. This tool finds every JSON-LD block, validates JSON, lists @type values, and formats output for copy-paste into audits or agent prompts. It also surfaces common Open Graph and meta tags in one view.
Does the tool crawl my whole site?
No. You supply one public URL, an HTML snippet, or pasted JSON-LD. The server fetches only the URL you enter — with an eight-second timeout and a 512 KB cap — and does not use third-party scraping proxies.
Why did URL fetch fail?
Some sites block server requests, require login, or return very large pages. Paste View Source or saved HTML instead, or paste JSON-LD script bodies directly. Client-side paste modes never send your HTML to our servers.
How does AnyPost use structured data?
AnyPost ships Organization and WebSite JSON-LD on marketing pages, WebApplication on free tools, FAQPage on tool landings, and BreadcrumbList on nested routes. Use this extractor to audit your own pages the same way.