How do you watch a video with friends online?

Short answer

Share one room link. Kosmi keeps a video in sync for everyone in the room, adds voice and video chat on the side, and runs in the browser with nothing to install and no account to create. It plays streamed video and local files alike, and the same room does poker, chess and retro multiplayer games when the film ends.

One link, and everyone is in the same room

A room is a URL. You open one, you send the link, and whoever clicks it is in — no install, no sign-up, no invitation flow. That is the whole reason a watch party ends up on a tool like this rather than a screen share: the friction of getting five people into the same place is usually the thing that kills the evening.

Inside the room, playback is shared. Pause, and it pauses for everyone; skip back thirty seconds, and everyone skips back. Voice and video chat sit alongside the player rather than in a second app, so nobody is juggling two windows.

Mentioned here: 🛋️ Kosmi, 🎥 Jitsi Meet, 🖍️ skribbl.io, 📞 Gartic Phone

Local files, not just streams

Kosmi will play a file from your own machine to the room, which is the part most watch-party tools skip. That covers everything a streaming service does not: a downloaded film, a home video, a recording nobody uploaded anywhere.

The same room also holds games — poker, chess and a set of retro multiplayer titles — so the evening does not end when the film does. It is one room with several activities rather than a single-purpose player.

Where synced watching gets awkward

Streaming services are the limit. Playing a subscription service's catalogue in sync runs into that service's own protections, and no browser tool gets around that cleanly — expect local files and open web video to work far better than a paid catalogue.

Sync is also only as good as the slowest connection in the room. One person on poor wifi will drift, and everyone feels it. A quick pause and resume re-aligns the room, which is worth knowing before someone starts troubleshooting.