Free spaces are small‐scale settings within a community or movement that are removed from the direct control of dominant groups, are voluntarily participated in, and generate the cultural challenge that precedes or accompanies political mobilization. Since the term became popular in studies of movements in the 1980s, scholars have sought to better identify the features of particular institutional sites that equip them to spur political challenges. They have also probed the role of free spaces in authoritarian regimes, in right‐wing movements, and in relation to new digital technologies.