sync-lis

Watch and listen together, anywhere. What they play, you play, at the same timestamp. YouTube, Spotify, Netflix and more.

Watch or listen to the same thing as someone else, anywhere, without screen sharing. sync-lis links two browsers so that whatever one person plays, the other follows, at the same timestamp. Neither of you sends your screen or your audio stream to the other. Each browser plays its own copy of the page; only a shared clock travels between you, so there's no video quality loss and no lag from routing a stream through a server. Start a room, copy the link, send it. When they open it, their tab jumps to whatever you're on and stays with you from there: play, pause, and seek move both of you, and if you switch to a different video or track, their tab follows automatically. Works on YouTube, Netflix, Spotify web, and any site with a normal video or audio player. What makes it hold together, not just start together: - Wait for me — if either player starts buffering, the room pauses itself and picks back up together once it recovers, instead of drifting apart the way most "watch together" tools do. - Live drift readout — see exactly how far off you are from each other, so "is it just me?" has an answer. - Voice chat, peer to peer, never through any server. - Chat and reactions, timestamped to what you're watching. - Ready check — both press ready, a countdown runs, and playback starts on the same tick for both of you instead of one person chasing the other. No accounts. No premium tier. No screen-share picker. Paste a link, and you're watching together.