Person

Matthias Ettrich

1990s–present

Matthias Ettrich
Desktop Environments Open Source User Interface

Matthias Ettrich (born 1972) is a German software developer who founded the KDE project in 1996. His vision of a consistent, user-friendly desktop environment transformed Linux from a programmer’s tool into a viable desktop operating system.

Founding KDE

In 1996, as a student at Eberhard Karls University of Tübingen, Ettrich posted his “New Project: Kool Desktop Environment” message. He identified the problem: Linux had no consistent graphical environment, with applications looking and behaving differently.

Choosing Qt

Ettrich chose Trolltech’s Qt toolkit for KDE, a decision that influenced the project’s success. Qt provided professional-quality widgets and a consistent programming model.

KDE’s Impact

Under Ettrich’s initial leadership, KDE:

Trolltech and Qt

After KDE established itself, Ettrich joined Trolltech (later acquired by Nokia) to work on Qt directly. He contributed to Qt’s development and helped maintain the relationship between KDE and Qt.

LyX

Before KDE, Ettrich created LyX, a document processor that uses LaTeX for typesetting but provides a graphical interface. LyX remains popular in academic communities.

Legacy

Ettrich demonstrated that open-source communities could create polished, user-friendly software. KDE’s success showed that Linux could compete with commercial operating systems for desktop users.

Why You Should Care