Play werewolf online with friends (no download)
You can play werewolf online with the phones already in the room. Werewolf Night runs in the browser: no app store, no account, and no file to pass around. One person hosts from the home page, reads out a four-letter code, and everyone else joins on their own phone.
Online means the browser
This is a table game you open on the web, not a video call. The host's phone narrates the night out loud. Everyone else closes their eyes until their own phone buzzes. You need to hear that phone, so play it with people in the same room. The useful part of "werewolf online" is that nobody installs anything and nobody has to share a screen.
What a round actually is
You need three or more people. Any number can join the lobby, and the host deals once at least three are in. The deck always has three more cards than players. Those three sit face down in the center, numbered 1, 2, and 3, so the village can talk about a specific card.
A round is one night and one vote. You look at a secret role, the narrator calls every role in order (including roles sitting in the center, so a pause never reveals who woke up), then you argue and vote. The how to play page is the full sequence: setup, night, day, and who wins. When someone asks what the Robber does, the roles page has the night action without a rules lecture.
If the table is new, do the tutorial before you host. It is shorter than explaining the Tanner from memory. When you are ready, create a lobby on the home page and pass the code around.