Realtime · WebSocket sync · Notifications

Two players. One link. Live rally.

Create a room, share the link, claim a side. Alternate ping and pong in real time — each hit can carry a note, a URL, or a song.

Realtime roomMoves sync live over Ably WebSockets.

Player identityName and emoji before you join.

NotificationsBrowser alerts when the other player hits.

Room

Both players open the same link. Moves sync instantly.

Deploy on Vercel → add ABLY_API_KEY env var → share the link.

Name Emoji

Quick pick

Waiting for room Disconnected

Create a room to connect.

Attach a note, link, or song (optional)

0 / 1000

First move is always ping. Turns alternate strictly. Server validates the order.