ADMIN:WELCOME

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 next Monthly Tcl Meetup will be held Tuesday the 14th of February 2023. 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 8.6.13 Released! The Tcl Core Team is pleased to announce the 8.6.13 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 8.6.13 sources are freely available as open source from the Tcl Developer Xchange . See also Changes in Tcl/Tk 8.6.13
  • 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

February 03, 2023
Text Spinner
February 01, 2023
Feb 2023 Tcl Meetup notes
Monthly Virtual Meetup
January 30, 2023
Screenshot demo-ftk
Building graphical user-interfaces with Fortran and Tcl/Tk
January 28, 2023
tclMuPdf
January 27, 2023
Poor Yorick
January 26, 2023
tclmain
Detlef Groth
January 22, 2023
Rust