Structured Data Tester
Validate JSON-LD structured data for schema.org compliance. Check required and recommended fields, inspect nesting, view property tables, and export cleaned markup.
Input
Paste structured data to begin
Paste JSON-LD or HTML containing structured data. The tester will auto-detect format, extract all schema blocks, validate against schema.org requirements, and display a full property report.
Frequently Asked Questions
What is the Structured Data Tester?
The Structured Data Tester is a free online tool that validate json-ld structured data for schema.org compliance. check required and recommended fields, inspect nesting, view property tables, and export cleaned markup.. It runs entirely in your browser with no installation or sign-up needed.
What inputs accepted?
Paste raw JSON-LD or full HTML. When HTML is detected, all <script type="application/ld+json"> blocks are auto-extracted.
Which types validated?
19 types: Article, NewsArticle, BlogPosting, Product, FAQPage, HowTo, Recipe, Event, LocalBusiness, Organization, Person, BreadcrumbList, VideoObject, Course, JobPosting, Review, SoftwareApplication, WebSite, WebPage.
What do severity levels mean?
Error = required field missing (likely fails validation). Warning = recommended absent. Info = advisory notices like unrecognized types.
Is the Structured Data Tester free to use?
Yes, the Structured Data Tester is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.
Does the Structured Data Tester work on mobile devices?
Yes, the Structured Data Tester is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Structured Data Tester in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
Does this tool follow Google's latest guidelines?
Yes, the Structured Data Tester is built following current Google Search guidelines and best practices. We regularly update the tool to reflect changes in search engine requirements.
How do I use the Structured Data Tester?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Structured Data Tester works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Structured Data Tester
Structured Data Tester is a free, browser-based tool in our SEO Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.