Swignition (formerly known as Cognition) is a parser for both “upper case Semantic Web” (RDF, RDFa) and “lower case semantic web” (microformats) technologies. It includes modules for exporting parsed data in a variety of formats, including RDF, vCard, iCalendar, Atom and KML.

Swignition is written in Perl 5 and licensed under the GNU GPL (v3).

The cognition-parser project on Google code is only used as a subversion repository and for issue tracking. For general information, downloads and everything else, see Swignition home page.