Skip to main content
100% Free SEO Tools No Sign Up Required
Trusted by 50,000+ SEOs Worldwide
ToxicBacklink

Schema Extractor

A schema extractor discovers and parses all structured data embedded within a web page's raw HTML source code. Paste your full document source, and this free diagnostic tool extracts every JSON-LD script block, detects the Schema.org entity types, pinpoints syntax flaws, and counts microdata and RDFa entities. You can inspect formatted outputs, copy cleaned code, or download extracted schemas as a .json file.

By ToxicBacklink – Free SEO Tools & Backlink Checker · Last updated 16 October 2026 100% In-Browser · Zero Data Retention
Use the tool View Schema Markup & Structured Data Tools
Interactive Client-Side Engine • 100% In-Browser Zero Server Data Retention • Privacy Protected

Paste the page's HTML source code (or upload .html file).

JSON-LD lives in script elements with type="application/ld+json". One page can contain several blocks and several types.

What is a schema extractor and when should you use it?

Modern websites frequently output structured data from multiple conflicting sources simultaneously: WordPress active themes, SEO plugins, e-commerce extensions, and manual code snippets. Extracting this markup reveals exactly how search engine crawlers perceive your page entities, exposing duplicated tags, contradictory attributes, and broken script nodes. Because this tool operates entirely in your web browser, it securely analyzes full HTML documents without sending private page source or intranet contents to external servers. After extracting raw JSON-LD blocks, you can validate syntax errors using the JSON-LD Syntax Checker and replace outdated code with streamlined markup generated by our purpose-built tools: including the Article Schema Generator, Organization Schema Generator, Product Schema Generator, Local Business Schema Generator, FAQ Schema Generator, How-To Schema Generator, Course Schema Generator, Video Schema Generator, Event Schema Generator, Recipe Schema Generator, and ensure complete property compliance using the Schema Property Completeness Checker from our suite of Schema Markup Tools.

How do you use it?

  1. Open the target web page in your browser, right-click, and select "View Page Source" (Ctrl+U or Cmd+Option+U).
  2. Copy the entire HTML source code from the beginning to the end tag.
  3. Paste the copied HTML into the input textarea above.
  4. Click "Extract Structured Data" to execute real-time client-side parsing.
  5. Review the summary breakdown showing total JSON-LD script blocks, detected entity types, and syntax errors.
  6. Inspect individual formatted JSON blocks, copy specific entities, or download the consolidated schemas as a JSON file.
  7. Verify extracted blocks in Google's official Rich Results Test using the direct link provided for each block.

Working on a comprehensive technical audit? Browse all free SEO tools to discover the next step in your workflow, or contact our technical support team if you require a specialized custom utility.

Result interpretation & practical applications

When evaluating the output of the schema extractor, review the parsed metrics against your specific site architecture. Outputs are formatted for direct implementation into your HTML source, web server configuration, or Google Search Console audit files.

Always inspect generated values for contextual nuance. Automated tools highlight structural patterns, but manual verification confirms that technical directives align with your overarching SEO strategy.

Technical rules and limitations

  • Structured data must be contained within valid