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

• Tcl/Tk 9.0 is a new major version of Tcl/Tk. See Tcl Developer Xchange for a summary of the most noteworthy changes.

• The European OpenACS and Tcl/Tk conference will be in Vienna/Austria/Europe on July 16 & 17, 2026. See Tcl Conferences.

• There is a Monthly Tcl Meetup held online. Details are available on the Monthly Virtual Meetup page.

• A virtual European Tcl Meetup is held monthly. For futher details see Monatlicher virtueller Tcl Stammtisch

• Tcl Conferences has details of upcoming and past Tcl conferences

• Tcl/Tk 8.6.18 (12 May 2026) Released. Downloads

• Tcl/Tk 9.1a1 (5 March 2026) Released. Downloads

• Tcl/Tk 9.0.3 (13 November 2025) and 8.6.17 (15 August 2025) Released. Downloads

• Subscribe to the Fosstodon @tcl_tk (or X @TclLang) feeds for news about happenings and interesting stuff from the Tcl world!

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