Consumer decision-making has been transformed by digital platforms and social media. User-generated content (UGC) and electronic word of mouth (eWOM) have a leading role in influencing purchase intention. Despite the increased academic interest. Nevertheless, studies are still disjointed in terms of industries, regions and platforms. This paper is a systematic bibliometric review of eWOM and UGC, and purchase intention. Studies that are published within the last four years, 2020-2024. Based on the Dimensions AI database. 249 open-access articles were analysed using VOSviewer software in terms of performance, co-citation, and co-word analysis. The results indicate that publications have been on a consistent increase, which indicates more academic attention to the subject of digital consumer behaviour. The volume of publications is mostly at the forefront of Southeast Asian universities, in Indonesia. Whereas Western establishments like Swansea University generate fewer but well-cited works. Three themes were identified: eWOM as a marketing strategy, credibility and brand equity in purchase decisions, and platform-specific influences in social commerce. The research has identified credibility, content quality, and platform adaptation as some of the most important elements of consumer trust, which can be used by marketers, researchers, and policymakers.