Watch reaction videos
in perfect sync.

Open your source content and reaction video in two separate browser tabs. Open the Reaction Sync popup, pick the source tab and the reaction tab, and hit Continue.

Have a sync script for this reaction? Load it and start from the beginning or jump to where you left off. No script? Start a manual session and align as you go.

When either video needs to buffer or re-align, Reaction Sync pauses both and waits. No manual intervention — both videos stay in lockstep at all times.

Once synced, both videos play together. The reactor pauses to comment — both pause. They skip the intro — both skip. You never touch a timeline again.