OSDS_extension
OpenLinkSoftware
JavaScriptcsvjson
“The OpenLink Structured Data Sniffer (OSDS) is Web Extensions compliant Browser Extension for Chrome, Firefox and Opera browsers that detects structured metadata embedded in web pages using JSON-LD, Microdata, RDFa, RDF-Turtle, or Plain Old Semantic HTML (POSH). It also supports CSV and JSON data transformation.”