The RngToRnc package contains XSLT stylesheets for converting RELAX NG schemas in the XML syntax to the compact syntax. The stylesheets can output either a plain text result, or a hyperlinked HTML document.

A small emacs mode for editing RELAX NG schemas in the compact syntax. It's just a beta. The indentation function needs some improvement.

RncReader is a SAX2 parser for the RELAX NG Compact syntax. It will parse a compact syntax schema and send events to a content handler as if it was reading a RELAX NG schema in the XML syntax.