Eclipse EMF Compare brings model comparison to the EMF framework, this tool provides generic support for any kind of metamodel in order to compare and merge models.
Eclipse Acceleo is an open source code generator implementing the OMG's MOF Model to Text Language (MTL) standard that uses any EMF based models (UML, SysML, domain specific models...) to generate
The Eclipse Extended Editing Framework is a presentation framework for the Eclipse Modeling Framework. It allows user to create rich user interfaces to edit EMF models.
The Eclipse Ecore Tools component provides a complete environment to create, edit and maintain Ecore models. This component eases handling of Ecore models with a Graphical Ecore Editor and bridges to other existing Ecore tools (Validation, Search, Compare, Emfatic, generators...). The Graphical Ecore Editor implements multi-diagram support, a custom tabbed properties view, validation feedbacks, refactoring capabilities...
Eclipse Papyrus™ provides an integrated, user-consumable environment for editing any kind of EMF model and particularly supporting UML and related modeling languages such as SysML and MARTE.