Netscape Navigator 1.0 is a web browser developed by Netscape Communications Corporation, available for download in full install version for Windows platforms from legacy sources. This version of Netscape was officially released on 1994-12-15 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Netscape Navigator 1.0 was the first non-beta release of the commercial web browser to be releases though there had been many number of beta versions has been in use by the Internet community.

Developed by Mosaic Communications, a company formed by Jim Clark and Marc Andreessen, Netscape's release was an instant success due to the advanced functionalities of the browser of the then contemporary days. Netscape pioneered the term extensions which let third party developers to add functionality to the browser.