Tcl Libraries and Tools

DRAKON is a visual language and editor designed to be able to represent goal-based knowledge. The editor is incredibly intuitive, being powerful but still accessible even for new users, and it's available online and offline for Windows, Mac and Linux.

Insight is a version of GNU Project Debugger that uses Tcl/Tk to implement a graphical user inter-face. It is a fully integrated GUI, not a separate front-end program.