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Designed byStefan Urbanek
First appeared5 September 2005; 18 years ago (2005-09-05)
Final release
0.12 / 30 June 2006; 17 years ago (2006-06-30)
Typing disciplineDynamic
Implementation languageObjective-C
Influenced by

StepTalk is the official GNUstep scripting language framework that represents separate scriptable servers or applications as a single object environment. It is meant to be independent of the programming language used. Its default language is Smalltalk running on an Objective-C runtime.

StepTalk was ported to Mac OS X.


The goal of StepTalk is to provide an environment for gluing applications together and to provide a framework for communication between users and objects in the applications. Other major goals are:

The default scripting language in StepTalk is Smalltalk. This is because Smalltalk is a very simple language and is easy to learn. There are just a few basic principles that a user must know to be able to use the language, and it is similar to a natural language. Smalltalk uses a similar approach to that of Objective-C, the language used in GNUstep.


StepTalk works on any platform on which GNUstep works. Ports to native macOS Cocoa framework are being developed by various contributors.

See also