There are numerous applications available for schema markup/ structured data markup. Here I've mentioned a couple of resources, through the use of these you are able to create structured info in all 3 formats. Please Be aware that isSemantic.Web does not validate markup which contains other vocabularies Apart from Schema.org; https://reidnkftk.thezenweb.com/the-2-minute-rule-for-prestashop-plugin-69699359