Structured data testing tools
It's important to test structured data instead of simply adding it in and letting it run. If you do, you'll likely find a whole bunch of errors. Use these structured data testing tools to monitor your pages and identify any potential errors.
13 tools
PaidSitebulb is a powerful website auditor with a great reporting system. It won 'Best Search Software Tool' at the 2018 UK Search Awards and the US Search Awards.International SEO, SEO checker, SEO crawler, Site speed, Structured Data, XML Sitemaps
Sitebulb
Mac Windows
PaidBuilds a knowledge graph that can be used to automate structured data markup.Structured Data
WordLift
Web Application- PaidEntity-based SEO Platform, to help you rank higher & stay ranked longer.Content briefing, Content writing, Structured Data
InLinks
Web Application 
PaidSeamlessly visualize your JSON data instantly into graphs.Structured Data
JSON Crack
Web Application- PaidSiteGuru runs an SEO audit on your site and gives you an an actionable SEO to-do list.SEO checker, SEO crawler, Structured Data, XML Sitemaps
SiteGuru
Web Application - FreeUse this tool to view how your page looks with the structured data it contains.Structured Data
Structured Data Testing Tool
Web Application - FreeUse this tool to see which rich results can be generated by the structured data a page contains.Structured Data
Rich Results Test
Web Application - FreeA Schema.org structured data generator that supports the creation of JSON-LD markups. Including all of the required item properties and more.Structured Data
Merkle Schema Markup Generator
Web Application - FreeAn extension that is compatible across multiple browsers that unveils structured metadata embedded within HTML documents and web pages.Browser extensions, Site Auditing, Structured Data
OpenLink Structured Data Sniffer
Chrome Firefox - FreeOne of the easiest ways to add Schema's structured markup to a page is to use JSON-LD. With this tool you can quickly generate the correct JSON-LD for anyStructured Data
JSON-LD Schema Generator
Web Application
