Banner showing base of Eiffel tower


Download version 1.4.8: Windows or Linux


This website documents Eiffel-Loop, a collection of software libraries, example programs and tools for the Eiffel programming language. From the projects index below, you can read the documentation and browse the source code for each Eiffel-Loop project. Class indexing notes are formatted with bold, italics, code blocks etc.


Eiffel-Loop has 3631 classes containing 802502 words* of code. Total size: 7.9 mb.

* Code words include keywords, identifier words and quoted strings, but exclude comments and indexing notes.

On Github

Eiffel-Loop is hosted on github at


The Eiffel-Loop website is published using the Eiffel-View repository publisher tool found in the Eiffel Development Utility project.

EiffelStudio 20.05

If you would like to support a project to update Eiffel-Loop for the EiffelStudio 20.05 compiler and beyond, please donate what you can to Hex 11 Software. You can follow this project on Eiffel Users forum for details and updates.

Paypal logo

The Developer

Eiffel-Loop is developed and maintained by Finnian Reilly. Finnian has been developing with Eiffel professionally since the year 2000 and started development of Eiffel-Loop around the year 2002. Since then he has been continously polishing these libraries and adding new ones.


The following links list articles about Eiffel-Loop written by Finnian Reilly, as well as general posts about the Eiffel language.


Please address questions and comments to finnian at eiffel hyphen loop dot com


Click on a project link to read the documentation and browse the source code. The number in brackets indicates the class count.



Libraries (Base)

Libraries (Graphic)

Libraries (Language Interface)

Libraries (Multimedia)

Libraries (Network)

Libraries (Override)

Libraries (Persistency)

Libraries (Runtime)

Libraries (Testing)

Libraries (Text)

Libraries (Utility)