Trebuchet is a 100% TCL cross-platform GUI MUD client, designed to be powerful and extensible, yet easy to use. This client also has support for advanced features, such as SSL encryption, and allowing the server to request custom GUI dialogs.
Open Source and Portable object oriented software for 3D digital image segmentation and visualization. Pipes and Filters Architechture. Implemented in C++, and uses FLTK, VTK, ITK, TCL (plugins), and pipeline filters implemented in XML. DICOM support.
Tcl/Tk support for the EPICS control system along with EPICS aware megawidgets.
MacBibTk is a Mac compatible version of Peter Corke's tkbibtex (release 9), a BibTeX file editor and browser. BibTeX is a reference/citation system for use with LaTeX. MacBibTk runs on all platforms with Tcl/Tk ports.