Welcome to the Tcler's Wiki!

What is Tcl?

Tcl is a simple-to-learn yet very powerful programming language. Its syntax is described in just a dozen rules, but it has all the features needed to rapidly create useful programs in almost any field of application - on a wide variety of international platforms. See more about Tcl at What is Tcl

What is Tk?

Tk is a graphical toolkit for Tcl. It allows you to develop graphical applications that run on Windows, Linux, MacOS X and many other platforms. And not just from Tcl - Tk can be used from many languages including C, Ruby, Perl, Python and Lua. See more about Tk at What is Tk

Tcl Community News

  • The Monthly Tcl Meetup is held the second Tuesday of each month. The next meeting will be held Tuesday 10th May 2022. Details are available on the Monthly Virtual Meetup page.
  • The SQLite & Tcl Conference was held online on Wednesday, November 17, 2021. Please visit conf.tcl-lang.org for details.
  • Tcl/Tk 8.6.12 Released! The Tcl Core Team is pleased to announce the 8.6.12 release of the Tcl dynamic language and the Tk toolkit. We would like to express our gratitude to all those who submit bug reports and patches. This information is invaluable in enabling us to identify and eliminate problems in the core. Tcl/Tk 8.6.12 sources are freely available as open source from the Tcl Developer Xchange . See also Changes in Tcl/Tk 8.6.12
  • has set up a bounty program for improvements to Tcl and certain Tcl packages.
  • Subscribe to the @TclLang Twitter feed for news about happenings in the Tcl world.

Recent changes

May 19, 2022
Paced Loop Framework Animation
Paced Loop Framework
May 18, 2022
Tcl for Creo
everything is a string
Yksitoista sääntöä
May 15, 2022
18th European Tcl/Tk Users Meeting 2022
Tcl Conferences
May 13, 2022
Variables in TclOO
May 11, 2022
test-driven development