Digital media platforms have been implicated in the recent rise of far-right extremism. This study proposes that these platforms afford emotional processes that lie at the core of far-right movements. Drawing on Randall Collins’ interactional framework and the literature on cultural trauma, we investigate the emotional processes triggered by traumatic experiences within far-right online communities. As a case, we examine how the white supremacist community Stormfront responded to the 2008 election of Barack Obama, by analyzing the complete datasets of discussion on the forum through a combination of computational methods and qualitative analysis. Our findings suggest that the community functioned as a “emotional refuge”, where members collectively interpreted and transformed their emotional reactions, thereby shaping an emotionally energized collective with a focused target of collective action.