Welcome to the Tcler's Wiki! Tcler's Wiki Home Changes Random page New page Page Comment Edit Upload References History Page References History Showcase Tutorial Articles Playground Help Page Markup Wiki Categories Topics Report Problems Privacy License User 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 is a new major version of Tcl/Tk. See Tcl Developer Xchange for a summary of the most noteworthy changes. Subscribe to the Fosstodon @tcl_tk or X @TclLang feeds for happenings and interesting stuff from the Tcl world! For monthly virtual meetups that anyone is free to join, see Monthly Virtual Meetup or the Europe-centric Monatlicher virtueller Tcl Stammtisch. See Tcl Conferences for upcoming and past Tcl conferences, the latest of which was held in Vienna on July 16 & 17, 2026. Tcl/Tk 9.1b0 (30 June 2026) Released. Downloads Tcl/Tk 9.0.4 (27 June 2026) Released. Downloads Tcl/Tk 8.6.18 (12 May 2026) Released. Downloads Recent changes August 13, 2026 A better way to do indexation August 11, 2026 FM August 09, 2026 How Discover TCL/TK? & Mini-Bio Overflow Area August 06, 2026 Blend2d Rivet Articles August 05, 2026 GiD July 31, 2026 imap4 POP IMAP View all recent changes Updated 2018-02-25 07:09:04