Play Connect 4 online, together
Play a private two-player game with a friend, find a public opponent, or practise against AI. No account or download is required, and private games can use optional video chat.
Before the first drop
Pick a column and the board handles gravity for you. The whole game comes down to building one line while cutting off your opponent's.
Drop one disc into a column
The disc falls into the lowest empty space in that column. Players alternate one drop at a time.
Connect four in any straight line
Four matching discs horizontally, vertically, or diagonally wins the round immediately.
Watch both ends of every threat
A good move can build your own line and block the opponent at the same time. If the board fills without a line of four, the round is a draw.
Play a round here
Try a quick game against AI, send one invite link to a friend, or join a public opponent for a two-player match.
No signup step is required. Choose a name and start playing.
Connect Four
Questions before you play
Can I play Connect 4 online with one friend?
Yes. Create a private two-player game and send your friend the invite link. You can play from separate devices and browsers.
Can I practise Connect 4 against AI?
Yes. Solo mode gives you a computer-controlled opponent whenever you want a quick game.
What counts as four in a row?
A horizontal, vertical, or diagonal line of four discs belonging to the same player wins the round.
Do we need accounts or downloads?
No. Both players can open the game directly in a modern browser.
Start a Connect 4 room
Invite one friend with a private link, practise against AI, or join a public opponent. Everything runs in your browser.