This chapter examines queer digital culture, a term that refers to the ways in which LGBTQ+ identities, practices, and theories have been mixed up in the emergence, design, and constitution of digital technology. It highlights significant shifts at the intersections of queer identity and politics and digital communication technologies from the 1980s to the early twenty-first century, including transitions from textual to audiovisual media; from subcultural to mainstream politics; from utopian political aspirations (Afrofuturism; cyberfeminism; cyberqueer) to commercialization; and from identity play and performance to consumer authentication. It concludes by drawing out the contradictory dimensions of queer digital culture which both exacerbate forms of oppression and offer liberatory trajectories. Alongside the rise of new forms of heteroactivism, commodified identities, and ubiquitous but unequal digital access, LGBTQ+ digital media continues to offer the promise of solidarity and intervention in relation to social justice.