The increasing popularity of the internet affects economic activities. This research aims to examine the impact of Internet use on trade openness in Southeast Asian countries, with eight countries over the period of 1996-2020 as its samples. This study analyzed the data provided by World Bank using regression methods on random-effects, fixed-effects, and Driscoll-Kraay standard errors models. The research results show that Internet use positively affects trade openness in Southeast Asian countries. In addition, the result presents a positive relationship between trade openness with financial development, economic development, and urban growth rate.