EiffelStudio is an IDE for the Eiffel language (ECMA-367, ISO/IEC 25436, and ACM Software System Award 2006).

• Eiffel compiler
• Eiffel GUI editor
• Eiffel code browsing tool
• Eiffel diagram editor with round-trip,
• Eiffel refactoring tool
• Eiffel debugger
• Eiffel profiler
• Eiffel analysis tools (Metrics, Dependencies, etc.).

Eiffel generates C or CLI for .NET or Mono. Eiffel applies O-O principles and Design by Contract for high-quality software.

Many Eiffel libraries are included: ADT, network, GUI, database, parsing (including an Eiffel parser), XML, Web, COM, and more.