To use SBML Browse, follow these steps:

1. Add one of these to your SBML file, depending upon the level and version:

Level Version Stylesheet
2 1 <?xml-stylesheet type="text/xsl" href="http://www.mcisb.org/SBMLBrowse/sbml2_1.xsl"?>
2 2 <?xml-stylesheet type="text/xsl" href="http://www.mcisb.org/SBMLBrowse/sbml2_2.xsl"?>
2 3 <?xml-stylesheet type="text/xsl" href="http://www.mcisb.org/SBMLBrowse/sbml2_3.xsl"?>
2 4 <?xml-stylesheet type="text/xsl" href="http://www.mcisb.org/SBMLBrowse/sbml2_4.xsl"?>

2. Open SBML file in web browser.

It should like a little this this.

Note: current versions of Firefox have security issues that prevent this from working out of the box. Try the following workaround: