The Tool Command Language implementation
A universal instant messaging (IM) program
Computer Algebra System written in Common Lisp
Swiss army knife of image processing
A barcode encoding library supporting over 50 symbologies.
Chess Database and Toolkit program
Library to control radio transceivers and receivers
The Open On-Chip Debugger
Easily install, upgrade and uninstall open source software on your Mac
Manage your shell environment variables and aliases
Open Source Solid Modeling CAD
Img is a collection of format handlers for the Tk photo image type.
Linux GPIB Driver package (source)
Schematic circuit editor for VLSI and Mixed mode circuit simulation.
NaviServer, a high performance web server written in C and Tcl
Earth orbits and satellite coverage display in 3D on your laptop.
Doing 3D with Tcl