Bilibili

Bilibili began as an anime and gaming video community and grew into one of China's main platforms for long-form video, with knowledge, technology and hobby content now a large share of what is watched.

Its defining feature is danmaku — comments that scroll across the video at the moment they were posted — which turns watching into a shared, time-synced experience rather than a solitary one.

Its audience skews young and engaged, and creators there sustain unusually strong community relationships. For technical or educational content aimed at Chinese viewers, it is often a better fit than short-video platforms.