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New: Summer of Code Projects

Interested in participation on Liberty in a Google Summer Of Code Project? Find more details on our ideas page.
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Welcome to the Liberty Eiffel home page!

Liberty Eiffel project is the GNU Eiffel Compiler.

It is a free eiffel compiler started from SmartEiffel code base. Its goal is to retain from SmartEiffel its rigour; but not its rigidity.
Think of Liberty as SmartEiffel down from its ivory tower. More...


Currently the only form of documentation is the Wiki and our browsable class reference for the libraries (and tool classes) included in Liberty.

To get started using Liberty browse the Getting Started page in the wiki.

Communication channels


Liberty Eiffel's first release, code-named Adler, is freshly out!

Just download this source tarball, unpack it, and call the script on Linux. You may have to adapt it on other platforms. Please send patches!

See also the precompiled packages for Debian.



The code and issue tracking of the Liberty Eiffel project is hosted on GNU's Savannah. To clone the latest content of out development repository use

git clone git://

Test suite

Our test suite is executed automatically after each commit by ET, see the reports on

Who we are

The LibertyEiffel project is driven by an open team of developers interested in a free Eiffel implementation.
There is no formal association for the project but in case you need to contact via letter, write to Raphael Mack, Joh.-Seb.-Bach-Str. 3, 74321 Bietigheim-Bissingen, Germany.
To reach the project via email write to