The Tool Command Language implementation
Swiss army knife of image processing
Computer Algebra System written in Common Lisp
A universal instant messaging (IM) program
Manage your shell environment variables and aliases
Platform-agnostic GUI supporting CVS, Subversion, Git, and RCS
Side-by-side diff viewer, editor and merge preparer
Open Source Solid Modeling CAD
Schematic circuit editor for VLSI and Mixed mode circuit simulation.
Implementation of Tcl for the CLR.
Video mixer for mixing live and recorded video and audio feeds
Manual QSO log entry/editing program using PYTHON3
tk-number is a spreadsheet program written in tcl/tk