Peer Party lets you play party games with friends in your browser: create a lobby, share a link or code, and play together. Games include Sharpest Whit (write and vote on the funniest answers), Caption This (caption each other's photos) and Draw This! (draw the same prompt and vote for the best). Free, no sign-up. JavaScript is required to play.
Learn more: how to play, Sharpest Whit, Caption This, Draw This!.