syncHime is a Chrome add-on developed by ssshooterx that offers a convenient way to synchronize video playback time on Bilibili, a popular video streaming platform. With the added bonus of a chat function, users can connect directly with each other without the need for registration.

The plugin utilizes either WebRTC or WebSocket communication, providing flexibility for users to switch between WebSocket servers as needed. In addition to Bilibili, syncHime also supports YouTube, with plans to expand its compatibility to include more video streaming websites in the future.

With syncHime, users can watch videos together with friends or other users, ensuring that everyone is watching at the same time. The chat feature further enhances the viewing experience by allowing users to discuss and share their thoughts in real-time.

Overall, syncHime is an excellent tool for Bilibili enthusiasts who want to synchronize their video playback time and engage in conversations while watching videos on the platform.