A lightweight dependency injection framework to help wire up objects in Ruby

Unity is a Dependency Injection container for .NET

Racket Registry is an easy-to-use container lib for most of your dependency injection container needs.

SmartInject is a minimalist, flexible and efficient dependency injection for Ruby based on constructor injection, one of the most used method for DI. SmartInject is intented to be under your control. No magic here.

Needle is a Dependency Injection/Inversion of Control container for Ruby. It supports both type-2 (setter) and type-3 (constructor) injection. It takes advantage of the dynamic nature of Ruby to provide a rich and flexible approach to injecting dependencies.

A lightweight dependency injection container for Ruby

Plugin system for Rails built around a Dependency Injection Container

ObjectInjection is dependency injection container.

Morphine is a lightweight dependency injection framework for Ruby. It uses a simple Ruby DSL to ease the pain of wiring your dependencies together.

S2Container is a Dependency Injection(DI) and Aspect Oriented Programming(AOP) implementation, written in Ruby