The Tool Command Language implementation
Side-by-side diff viewer, editor and merge preparer
Platform-agnostic GUI supporting CVS, Subversion, Git, and RCS
Next Scripting Framework (NSF)
Dynamic Extension for TCL/TK
Relational Database Management System
Runtime and development environment of Oz
A free cross-platform editor for the DRAKON visual language.
Web development framework in Tcl
TCL bindings to VIX VMware API
C++ Tcl interface library