Amber for Parrot is an object-oriented scripting language for the Parrot virtual machine. It combines the traditional advantages of scripting languages with support for software correctness and large-scale software engineering. Amber for Parrot has syntax and semantics somewhere between those of Eiffel and Ruby.
EWS is a library implementing a small windowing system and toolkit to be embedded in multimedia applications. It runs over SDL, and supports real-time animations, alpha-blending, and completely customizable presentation. It is written in Eiffel and has an simple and extensible object-oriented API.
EDA is an Eiffel implementation of the General Decimal Arithmetic Specification. It allows unlimited precision decimal arithmetic. By implementing the GDA Specification version 1.08, the library conforms to the requirements of the ANSI/IEEE standard 854-1987, while supporting integer and unrounded floating-point arithmetic as a subset. EDA is part of the SAFE project.
The Eclipe Eiffel Development Tools (EDT) are a set of plugins which implement a full-fledged, highly integrated Eiffel development environment based on the Eclipse Platform. The EDT plugins contribute a number of facilities specific to Eiffel, such as an Eiffel builder, a Cluster Explorer, and Refactorings.
EWG (Eiffel Wrapper Generator) is a tool that generates Eiffel wrapper classes for C libraries. It can be used to create libraries that bridge the gap between Eiffel and C. It aims to work for arbitrary ANSI C and with all common Eiffel compilers. It is ideal for creating cross-platform, cross-Eiffel-compiler, and cross-C-compiler C library wrappers. It can handle pretty much all ANSI C, but understands Visual C and GCC extensions as well.