The JATS4R Validator and other useful tools
The Validator tool
The JATS4R Validator tool is a handy way for you to check your XML against JATS4R finalised recommendations. For those interested, it uses XML Schematron rules to check the XML and flag any discrepancies with the recommendations. Visit the Validator tool here.
Other useful tools
In addition to the Validator tool, JATS4R has a number of other useful resources on its Github repository. These can be accessed by going to the JATS4R Participant Hub on Github.