Feminists have long taken advantage of social media platforms for political and activist practices. While these efforts can take place in a varied digital media ecosystem, different platforms, with their distinct affordances and cultures of use, can help shape different modes of feminist expression. Drawing on 18 in-depth interviews with a varied group of feminist Instagram users, this article explores how Instagram, and particularly its Stories feature, can be used for feminist purposes. Adopting a holistic perspective, this article engages with participants using Instagram in different capacities – personal, professional, and activist – and is attentive to both highly visible social media practices and small acts of engagement, such as sharing to one's Stories, that embed feminisms in everyday social media uses. These interviews present a wide array of political action within Instagram, highlighting how Stories’ ephemeral affordances, interactive functionalities, and casual cultures of use can contribute to their perceived political potential. However, these interviews also help to foreground the tensions, complexities, and contradictions that can emerge in these feminist practices, addressing how political responsibility, platform logics of algorithmic visibility, and an uneasy relationship between the two can coalesce in pressures for constant online presence. This article thus offers a reflection on Instagram as an ambivalent vehicle for platformised feminisms, balancing platform limitations with critical users’ agency.