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PLT Scheme
 
 
PLT Scheme is now Racket

With the release of version 5.0, PLT Scheme was renamed to Racket. (Why?)

PLT will continue to maintain and grow Racket as it did for PLT Scheme for 15 years. Our commitment to this product hasn't changed and we will continue to work with all of our users on the usefulness of our programming language and IDE.

This web page is maintained for historical reasons only. For all future releases, please visit the Racket site.

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PLT Scheme is an innovative programming language that builds on a rich academic and practical tradition.
It is suitable for implementation tasks ranging from scripting to application development, including GUIs, web services, etc.
It includes the DrScheme programming environment, a virtual machine with a just-in-time compiler, tools for creating stand-alone executables, the PLT Scheme web server, extensive libraries, documentation for both beginners and experts, and more.
It supports the creation of new programming languages through a rich, expressive syntax system. Example languages include Typed Scheme, ACL2, FrTime, Lazy Scheme, and ProfessorJ (which is a pedagogical dialect of Java).
Getting started:
Quick: An Introduction to PLT Scheme with Pictures
More: Systems Programming with PLT Scheme
Guide: PLT Scheme

Download PLT Scheme

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DrScheme Tour

Latest release: 4.2.5, April 2010