openCarac : Automatize your Spice simulator runnings
Easy to use pentesting distribution for wireless security enthusiasts
Tkined/Scotty is a graphical network monitoring package
The Model Railroad System can help you run your railroad.
Base support for Tcl-based testing in Ada
MeteosatTool is for visualization and processing meteo satellite image
Frontend for PostgreSQL and SQLite databases
Additional Graphical Classes and Widgets for Tkinter/Ttk
Simple Tcl/Tk library for XML-based GUI creation
Metadata grabber
A lightweight webserver with builtin support for Tcl CGI scripts
Co-routine based multitasking package for Tcl
Image viewer for animated GIFs
A complete multi-language developement stack for GNU/Linux