Tool for testing Schema.org markup [closed]

Answer 1

This one came to my attention recently. linter.structured-data.org

I like that it generates a preview when the Google Rich Snippet tool reports "Insufficient data to generate the preview." The structured-data tool also generates a more structured, almost graphical result, which makes the results a bit easier to understand.

Answer 2

You can try Bings Validator now: https://ssl.bing.com/webmaster/diagnostics/markup/validator

Answer 3

Mida supports the full schema.org standard and would therefore be worth taking a look at.

Answer 4

The microdata-tool jQuery plugin.

Included in your markup it displays the metadata it is able to extract. Thus it's ideal for using it offline or on localhost. Although it's work in progress, it supports many (if not all, I'm not sure) of the schema.org metadata.