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The Best of the JVM:

High performance
Real threading
Vast array of libraries

It's Just Ruby:

Ruby 1.8.7 compatible now
Ruby 1.9 compatible soon

Platform Independent:

Easy to install
Easy migration
No hassles

Download JRuby

Extract JRuby into a directory.
Add that directory's bin subdirectory to the end of your path.
Test it: jruby -v

detailed instructions

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RECENT NEWS

JRuby 1.4.0 Released

The JRuby community is pleased to announce the release of JRuby 1.4.0

Homepage: http://www.jruby.org/
Download: http://www.jruby.org/download

After three very helpful release candidates we have a final 1.4.0 release. This release ends a long release cycle in which we resolved a huge number of issues. The headline feature is a move to Ruby 1.8.7 support, in line with Rails&...

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JRuby: 100% Pure-Java Implementation of the Ruby Programming Language.

The Best of the JVM:

It's Just Ruby:

Platform Independent:

RECENT NEWS

JRuby 1.4.0 Released

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