Twitch's most-watched streams aren't in English. Japanese variety shows, Korean esports broadcasts, French Just Chatting — all of them have huge global audiences who rely on fan-submitted translations that lag by 30 seconds. SyncDub closes that gap.
Live mode vs VOD mode
SyncDub runs in two modes for Twitch: live mode (the broadcast is currently happening) and VOD mode (you're watching a recorded stream later). Live mode has a longer lag — about 1.5 seconds — because we can't predict what's about to be said. VOD mode runs at the standard 320ms.
Setup
- Open the Twitch channel you want to watch.
- Click the SyncDub icon. Pick the streamer's language and your target.
- Toggle 'Live mode' on if the broadcast is happening now.
- Hit play. The first few seconds will be silent while the model warms up.
Best channels to try
- Hololive members — Japanese VTubers with English-speaking audiences, perfect test case.
- LCK and LPL esports — Korean and Chinese LoL broadcasts, fast-paced, dub handles it well.
- French cooking streamers — slow pace, vocabulary repeats, easy to translate.