JEOPARDY!

A free, browser-based Jeopardy game.
Board on the TV, buzzers on your phones.

Hosting?

Open this on the laptop/computer connected to your TV.

Playing?

Scan the QR code the host shows on the TV, or open this and enter the room code yourself.

Everyone needs an internet connection (buzzers connect peer-to-peer over the web), but no server, sign-up, or install is required.