JSON-LD Validator
Paste any JSON-LD and instantly validate syntax, @context, @type and common required properties. The markup updates live as you type — copy it, paste it into your page, and you are eligible for rich results.
What is a JSON-LD validator?
JSON-LD (JavaScript Object Notation for Linked Data) is the structured-data format Google recommends for describing your content to search engines. A validator reads that markup and confirms it is syntactically correct, declares a schema.org context and type, and includes the properties each type requires — the difference between markup that earns rich results and markup that is silently ignored.
Rich results — star ratings, FAQ dropdowns, event dates, product prices and more — consistently earn higher click-through rates than plain blue links, which makes correct structured data one of the fastest, cheapest wins in technical SEO.
Why validate your structured data
Invalid structured data silently fails — search engines just ignore it, and you lose the rich results you thought you had. Validating JSON-LD before shipping catches syntax errors, missing @context and absent required properties in seconds, instead of weeks later in Search Console reports.
Common JSON-LD errors this tool catches
The mistakes we see most often are simple: a trailing comma or unquoted key that breaks the JSON entirely, a missing or misspelled @context so search engines never recognize the block as schema.org markup, and a forgotten @type that leaves the data meaningless. Just as damaging are missing required properties — a Product without a name, an Event without a startDate, a JobPosting without a hiringOrganization — which make the markup valid JSON but ineligible for rich results. Paste your markup above and each of these problems is flagged in plain language, before Google finds them for you.
How to use the json-ld validator
- 1Paste your JSON-LD markup into the input panel.
- 2The validator instantly checks syntax, @context, @type and required properties.
- 3Fix any flagged issue and re-validate until every check passes.
Frequently asked questions
What does this validator check?
JSON syntax, a schema.org @context, the presence of @type, and the required properties for common types like Product, FAQPage, Event, JobPosting, Recipe and VideoObject.
Is this the same as Google’s Rich Results Test?
It is complementary — this validator gives instant structural feedback while you write. Before launch, also run Google’s Rich Results Test, which checks Google-specific eligibility rules.
Will this markup guarantee rich results in Google?
No tool can guarantee rich results — Google decides eligibility per page based on content quality, policy compliance and overall site signals. What valid markup does is make your page eligible: without correct structured data you are not in the running at all. Combine it with visible matching content, a crawlable page and solid on-page SEO for the best chance.
Is the JSON-LD Validator free to use?
Yes — the JSON-LD Validator is completely free, with unlimited use, no signup and no email required. It is built and maintained by WebSoft IT Development Solutions.
How do I add the generated JSON-LD to my website?
Copy the generated <script type="application/ld+json"> block and paste it into the <head> (or anywhere in the HTML) of the page it describes. On WordPress use a header-scripts plugin or your theme settings; you can also inject it with Google Tag Manager. Then confirm it with our JSON-LD Validator and Google’s Rich Results Test.