This paper explores the application of generative AI tools in the design and development of web user interfaces. AI tools encompass software systems that utilize machine learning techniques and data processing to autonomously perform tasks or generate new content. Special emphasis is placed on their ability to create new data based on patterns derived from existing data. In this way, they significantly enhance user efficiency and creativity. The aim of this paper is to analyze and understand the applications of artificial intelligence in the development of web user interfaces (UI). For the purposes of the study, empirical research was conducted through a questionnaire distributed across various social networks to analyze how generative AI tools are used in everyday tasks and to explore the advantages and disadvantages of their application. The respondents came from different sectors of the IT industry, with diverse levels of experience and age groups. The research highlights key benefits of using AI tools, such as an innovative approach to web interface design and development, acceleration of the development process, improvement of user experience, and creation of original design solutions. As many as 39% of respondents have integrated AI tools into their daily workflows, while approximately 45% expressed satisfaction with their use, emphasizing improvements in productivity and creativity. The remaining 55% expressed concerns about the reliability and ethics of these systems or remained neutral. The results underscore the potential of AI technologies to enhance design processes, but also highlight the need for careful consideration of their limitations and challenges.