Connect Four Online
Live 1v1. Share a code. Beat your friend.
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About Connect Four Online
Connect Four Online brings the classic four-in-a-row duel to live multiplayer. One player creates a room and gets a short code; the other joins with the code or an invite link, and the match starts instantly — every move appears on both screens in real time. Take turns dropping discs into the seven-column grid and be the first to line up four horizontally, vertically, or diagonally. Fire off emoji reactions mid-game, run rematches with alternating first moves, and track your head-to-head record for the session. It's completely free, works on phones and desktops, and needs no sign-up — just share the link and play.
How to play Connect Four Online
- 1Enter a name and create a room — you'll get a 4-letter code.
- 2Send the code or the invite link to a friend.
- 3The match starts the moment they join; red moves first.
- 4Click a column to drop your disc on your turn.
- 5Connect four in a row — across, down, or diagonally — to win.
- 6Hit Rematch to play again; the starting player alternates.
Tips & strategy
- Claim the center column early — it touches the most winning lines.
- Always scan for your opponent's three-in-a-row before making your own plans.
- Build two threats at once so only one can be blocked.
- Use reactions wisely — a well-timed 😱 is worth a move.
Frequently asked questions
How do I play Connect Four online with a friend?
Create a room to get a short code, then send your friend the code or the invite link. When they join, the game starts automatically — no accounts or downloads needed.
Is Connect Four Online free?
Yes — completely free. Rooms are created instantly and there's no sign-up, subscription, or install.
Can I play on my phone against someone on a computer?
Yes. The game runs in any modern browser, so phone vs desktop, tablet vs phone — any combination works.
What happens if my opponent disconnects?
You'll see that they left the room. You can wait for them to rejoin with the same code, or leave and start a fresh room.