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

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

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

Simple dependency injection for Rails.

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

A simple dependency injection framework.

Enable Guice-like dependency injection and contextual object interactions.

Encase is a library for using dependency injection within ruby applications. It provides a lightweight IOC Container that manages dependencies between your classes. It was written to assist with wiring of domain objects outside Rails applications to enable faster test suites.

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.

Dependency injection framework for ruby

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.

A simple dependency injection library for unit testing

Minimal dependency injection container for Ruby

Dumpling is an unobtrusive Dependency Injection Container

Constructor-based dependency injection container using YAML input.

A small library for simplifying dependency injection.

A custom generator for creating features as modules using the dry.rb gems. The module registers a dry system provider, adds routes, view and migrations paths to the application configuration and registers the models and services for dependency injection.