The study is dedicated to the specific type of user interface based on scaling visual objects images in computer systems. Before considering the issue itself, there had been characterized WIMP paradigm, used for building the majority of typical user interface, analyzed disadvantages and evaluated the potential complexity on its base, with causes the necessity in the development of new approaches to interface building. There had also been presented the basic principles for building the scalable user interface as well as enumerated the main means for the development of the alike systems with the examples of their applications. The last section describes practical aspects of realization of the scalable user interface, its disadvantages and methods for their solution. The research enabled to make a conclusion on prospects in application of scalable user interfaces.