Images of the protests that followed the death of 22-year-old Mahsa Zhina Amini on Sept. 16, 2022, in Iran and reports of the government’s brutal crackdown have circulated widely on social media. This flow of information comes despite efforts by the Iranian regime to throttle internet access and censor information leaving the country.

One effective method the protesters have hit on has been to use TikTok, the video-sharing app better known for young people posting clips of themselves singing and dancing. The way video clips are shared on the social media platform and the protesters’ clever use of labeling have helped activists circumvent the information blockade of Iran’s tech-savvy security services and reach a wide audience.

As a researcher who studies young people and participatory culture – art and information produced by nonspecialists, including fan fiction and citizen journalism – I believe that TikTok is proving to be an effective tool of political activism in the face of severe repression.

Key to its effectiveness is how TikTok works. Each TikTok video recorded by the user is typically 60 seconds or shorter and loops when finished. Other users can edit or “stitch” someone else’s TikTok video into their own. Users can also create a split screen or “duet” TikTok video, with the original video on one side of the screen and their own on the other.