HTML: Extract Structured Data

Paste your HTML or upload a file to extract JSON-LD, Microdata, and RDFa blocks. Results are shown separately, selectable, copyable, and downloadable.

HTML: Extract Structured Data - Explanation & Examples

The Extract Structured Data tool scans your HTML for embedded structured data formats such as JSON-LD, Microdata (itemscope/itemprop), and RDFa attributes. It separates each block and displays it in a readable, indented format so you can review, copy, or export the extracted content.

⭐ What can this tool detect?

  • JSON-LD scripts (<script type="application/ld+json">)
  • Microdata attributes such as itemscope, itemtype, and itemprop
  • RDFa attributes like property, typeof, about, vocab, etc.

🔥 How to use

  1. Paste your HTML into the input area or upload a file.
  2. Click Extract to process the content.
  3. Each detected structured data block appears below with its own Copy button.
  4. The combined output also appears in the textarea above the blocks, where you can Copy or Download .txt.

📝 Examples

JSON-LD:

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Person",
  "name": "Jane Doe"
}
</script>

Microdata:

<div itemscope itemtype="https://schema.org/Product">
  <span itemprop="name">Example</span>
</div>

⚠️ Important notes

  • No data is sent to a server; processing is done entirely in your browser.
  • If no structured data is found, the message "No structured data found in the provided HTML." will appear.

Frequently Asked Questions

Structured data is a standardized format for providing information about a page and classifying the page content. It enables search engines and other parsers to understand key attributes such as products, people, events, and more. Common syntaxes include JSON-LD, Microdata, and RDFa.

This tool supports JSON-LD (embedded in script tags), Microdata (HTML attributes like itemscope/itemprop), and RDFa attributes (property, typeof, about, etc.).

It detects JSON-LD scripts (<code>application/ld+json</code>), Microdata attributes (itemscope, itemtype, itemprop), and common RDFa attributes.

You can paste HTML directly into the textarea or use the "Upload HTML File" control to load a .html/.htm/.txt file.

Yes. Each extracted block has its own Copy button, and you can also click "Copy" above to copy all extracted data at once.

Click the "Download .txt" button to save all extracted structured data to a plain text file.

A clear message "No structured data found in the provided HTML." will be displayed.

No. All processing happens client‑side in your browser; nothing is transmitted anywhere.