Structured Data Testing Tool
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Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-17.
This extension will test structured data on a webpage
Marking up your page for better SEO listings?
This extension will check structured data / rich snippets on a webpage regardless of whether it is online, on an intranet or behind a passworded page.
You can test microdata, Schema, RDFa and JSON-LD are valid.
Also, view your structured data within Google structured data testing tool.
New in November 2016: We've just added the function to export data to the clipboard!
New in December 2016: We're highlighting errors and warnings in red and orange respectively.
New in March 2017: Fixed bugs related to Micro data JSON format changes in the Google Structured Data Testing Tool.
Latest reviews
Love this extention! Very convenient to use!
Really good, helped me a lot
insanely helpful
Very good tool for testing structured data without leaving the page. One things to mention, it is not showing the "item" property value of breadcrumb list items. Regardless of the value set, it always show empty.
awesome for local dev
Awesome
This has become a must-have extension for my Chrome toolbox.
good 👍
Excellent extension! Thank you for your work
Excellent tool!!!!
goood
Ferramenta muito útil para o trabalho de otimização semântica baseada em dados estruturados.
very helpful
Do the job!
Really useful!
Very useful for batch analysis of structured data for several URLs
That Very Important Extension ..... Awesome... love it
Realmente útil e imprescindible ¡¡100% recomendada!!
Easy to use, time saver. Highly recommended :-)
very good
I have found this extension so helpful and I am using it from a long time
Great tool !!! I just love it. You have the Schema testing tool all the time at your fingertips with any website. It works every single time and it is 100% accurate. Thank you very much to the developers!
Works great for testing markup on any web page!
Sài khá tốt, loading khá nhanh và chính xác
very useful... great tool
Very good.
Great tool for debugging structured data! Is there any plans to support Google Rich Results Test?
Clear + Useful
Muy buena!
Best tool to test structured data. Thank you!
It Works
Love this extension!
Thanks for this great extension.
Sin palabras! Ahorra mucho tiempo! y ya sabe..... time is $ . La recomiendo!
working great, , love it!
Great, you can save a lot of time!
Great tool !!!. Simple and Easy to use.
great tools
Yes Its helpful tool
Removing one star because it doesn't seem to show embedded items, only top level.
Exceptionally awesome tool for testing Structured Data for a website such as https://mykibanda.co.ke/
Very helpfull tool!
Work perfect!
Very useful when trying to find issues with data snippets
Awesome extension and very easy to use and helpful
I use it in all my SEO work. It's quick and helpfull.
Just added it. Looks good so far. Not necessarily what you need when you're developing the schema json, but seems very helpful for checking.
Very nice! Clear, simple. Love it! Thanks
Great tool, easy and accurate
Awesome Extension. Every seo manager has to have it installed
