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An implementation of the Scheme programming language built to be used as an extension language. It's a library you can link into your programs. Your program has full access to the interpreter's data structure, so you can extend Guile with your own primitives, datatypes, and syntax, and tailor the language to your application. It also lets more people use your language, as they needn't learn the internals of your app. They just need to understand the language and the primitives you've provided, and they can trade and share ideas by passing around scripts without you. It has arrays, lists, modules, objects, first class functions, and garbage collection.


Programmer manual available in HTML format from

"IRC irc:// " IRC Help channel

Heckert gnu.small.png This is a GNU package:guile


Download version 2.0.11 (stable)
released on 20 March 2014

VCS Checkout


Related Projects


LicenseVerified byVerified onNotes
LGPLv2.1orlaterKelly Hopkins13 July 2009

Leaders and contributors

Mark GalassiContributor
Andy Wingo co-maintainer
Greg HarveyContributor
Thomas TannerContributor
Anthony GreenContributor
Robert MerkelContributor
Martin GrabmuellerContributor
Ludovic Courtès co-maintainer
Jim BlandyContributor
Tim PierceContributor
Bill Schottstaedt Contributor
Roland OrreContributor
Matthias KoeppeContributor
Mark H. Weaver co-maintainer
Jost BoekemeierContributor
Tom LordContributor
Dirk HerrmannContributor
Russell McManusContributor
Michael LivshinContributor
Keisuke Nishida Contributor
Tom TromeyContributor
Gary HoustonContributor
Stefan Jahn Contributor
Neil JerramContributor
Marc FeeleyContributor
Will FitzgeraldContributor
Greg BadrosContributor
Thien-Thi NguyenContributor
Marius Vollmer Maintainer
Radey ShoumanContributor

Resources and communication

Audience Resource type URI
Developer VCS Repository Webview
Developer E-mail
Support E-mail
Help E-mail
Support Newsgroup comp.lang.scheme
Help Newsgroup gnu.announce
Bug Tracking E-mail

Software prerequisites

Kind Description
Weak prerequisite readline (for command line editing)

This entry (in part or in whole) was last reviewed on 18 May 2014.


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.

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