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.

Simple and stupid IOC container and dependency injection tool for ruby

The fastest dependency injection framework

A simple dependency injection library for unit testing

Minimalistic dependency injection framework keeps all of your object setup code in one place.

Enable Guice-like dependency injection and contextual object interactions.

Simple dependency injection for Rails.

A small dependency injection library for Ruby

A library to help you build nice service objects with dependency injection.

Minimalistic dependency injection framework keeps all of your object setup code in one place.

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

Embrace convention over configuration while still benefitting from dependency injection design principles.

motion-objection is a wrapper around Objection which is a dependency injection framework written for Objective-C

A simple dependency injection framework.

Basic but powerful dependency injection for Ruby.

Copland is an "Inversion of Control" (IoC, also called "Dependency Injection") container for Ruby, based heavily on the HiveMind container for Java. It supports both type-2 (setter) and type-3 (constructor) injection.

A dependency injection framework for Ruby, which allows you to register dependencies and access them anywhere in your program

Alki (AL-kai) is a Dependency Injection framework for Ruby. Helps organize and scale your project, so you can focus on the important stuff.

Minimal dependency injection container for Ruby

Dumpling is an unobtrusive Dependency Injection Container