Abstract
In this article, the editor and scientific director of Nietzsche Source, Professor Paolo D'Iorio, aims at describing the two editions of Nietzsche’s work currently published on this scientific Web site Firstly, the critical edition, the Digitale Kritische Gesamtausgabe Werke und Briefe (eKGWB), which provides an electronic version of the German edition of Nietzsche's complete works, based on the critical text established by Giorgio Colli and Mazzino Montinari. Secondly, the facsimile edition, the Digitale Faksimile-Gesamtausgabe (DFGA), which reproduces all the documents relating to Nietzsche's life and work. Both editions can be consulted free of charge through the Internet and are regularly used by the German philosopher specialists around the world.