Call JavaScript code and manipulate JavaScript objects from Ruby. Call Ruby code and manipulate Ruby objects from JavaScript.

Views Are Code: use all the power of Ruby to build views in your own language.

Ruby wrapper for (Open)Cyc server and ontology

Ruby Object Database is designed for large amounts of data, whose structure rarely changes.

A subset of Node.js running in therubyracer.

Identifier-based locking with deadlock detection

Adds support for memoizing functions

Truly outrageous bindable attributes

Write propositional logic formulae using Ruby DSL.

Simple Ruby Berkeley DB wrapper library for bdb.

A versatile CQRS and event sourcing framework

Observable::Weak is very similar to Observable from ruby’ standard library, but with the very important difference in that it allows it’s subscribers to be garbage collected.

A lightweight, extensible asynchronous event routing framework in Ruby.

Lightweight weak reference and weak hash that works in 1.9 and JRuby.