This paper deals with the topic of social capital in new social network platforms and ways of using TikTok. The goal of the research was to show social capital on social networks, as well as ways of using TikTok among young people. At the beginning of the paper, there is a presentation of the literature related to the topic of social networks and social capital, as well as a presentation of the results of similar, previously conducted research. Furthermore, the goals, research questions and hypotheses are presented. Below are presented the results of a convenient sample analysis of a survey conducted in 2023 on a sample of 102 students from three Croatian cities. The results of the analysis showed that the use of TikTok among young people differs from the results of previous researches that related to the use of other, then popular, social networks such as Facebook. Through several different methods (for example Pearson's correlation coefficient or analysis of variance) it was shown how TikTok is used by users, that there is no significant relationship between the time intensity of TikTok use and different types of capital, and it was shown that there is a positive relationship between the number of followers and bridging social capital.