Tcl (Tool Command Language) is a very powerful but easy-to-learn dynamic programming language, suitable for a very wide range of use cases:

  • including web and desktop applications,

  • networking, administration, testing and many more.

  • Open source and business-friendly, Tcl is a mature yet evolving language that is truly cross-platform, easily deployed and highly extensible.


Tk is a graphical user interface toolkit that takes the development of desktop applications to a higher level than conventional approaches.

  • Tk is the standard GUI not only for Tcl, but for many other dynamic languages, and can produce rich, native applications that run unchanged across Windows, Mac OS X, Linux and more.

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