Gnopernicus was a free GNOME desktop application that provided Assistive Technologies (AT) for blind and visually impaired users.

Gnopernicus is a "one-size-fits-all" screen reader that provided speech, Braille, and magnification for users with a range of visual impairments.

It was also possible to edit the XML files that describe the speech and Braille output renderings.

[3] Orca, with its radical different coding approach of making applications accessible, had more flexibility than the original Gnopernicus design and replaced it as the default screen reader in GNOME 2.16 in September 2006.

[6][7] The maintainers managed the development process with the help of many other members of the GNOME community:[8] Other developers who made great contributions to the project were Adriana Iobb, Pal Csongor Sprencz, Iuliu Szijjarto and Adi Dascal [9]