QIS

The Qckvu Image Server [QIS] is a powerful GDSII/OASIS database server that enables a client software to display and manipulate GDSII/OASIS data using a simple API.

As GDSII and OASIS files grow larger, many software developers are discovering that their own GDSII routines are no longer able to deal effectively with these large files -- they face the need to completely rewrite GDSII readers to handle files of 10,20 and even 50 GB.