This paper offers a political analysis of the platform and sharing economy—an economic model in which digital platforms facilitate social and economic interactions. Its two central models, mainstream and cooperative platforms, offer similar applications and services (e.g., home-sharing, food delivery), but fundamentally differ in their ownership and governance structures, economic models, and technical designs. Building on literature from the politics of technology (PoT), the paper develops an approach for the political analysis of platform technologies, combining central components from the works (...) of Winner, Feenberg, and Pfaffenberger. This approach is then applied to analyze the platform and sharing economy, highlighting the political significance of platform technologies. The analysis reveals three key insights. First, when incorporated into particular social arrangements, digital platforms become means for shaping social realities rather than mere tools for specific uses. Second, mainstream platforms perpetuate capitalist conditions in the digital sphere and therefore necessitate platform capitalism to function, whereas cooperative platforms resist and undermine it. Third, the dynamics between the platform models embody a struggle over the question of the good life in the digital economy. Additionally, the paper uncovers a philosophical weakness in Winner’s definition of “inherently political technologies” that warrants further attention in PoT literature. (shrink)