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GNU Smalltalk
Implementation of the Smalltalk object oriented language

GNU Smalltalk is a free implementation of the Smalltalk language. It implements the ANSI standard for the language and also includes extra classes such as ones for networking and GUI programming.


User tutorial included, manual in various format here.

NB. an introduction to programming using GNU Smalltalk available at

"IRC general" IRC general channel


LicenseVerified byVerified onNotes
License:GPLv2orlaterKelly Hopkins3 May 2010

Leaders and contributors

Andy Valencia Contributor
David Duke Contributor
Jeff Rosenwald Contributor
Paolo Bonzini Maintainer

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,Help,
BugsBug Tracking
Bug Tracking,Developer,Help,SupportMailing List Info/Archive
Savannah (Ref)
Ruby (Ref)
DeveloperVCS Repository Webview

Software prerequisites

Weak prerequisitetcl 8.0 or later
Weak prerequisitetk 8.0 or later
Weak prerequisitereadline

This entry (in part or in whole) was last reviewed on 5 April 2018.


"Bugs" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.