The Gestalt project consists of a number of tools which build upon the Gobo XSLT library. The following tools are presently available:

• Gestalt - an XSLT 2.0 command line processor that adds additional URI schemes to Gexslt, such as http, ftp and mailto.
• Gex - the Gestalt Explorer - an interactive debugger for XSLT 2.0
• A test driver for the W3C XSLT Working Group's test suite
• Fxsl - a command line interpreter for Functional XSLT