Play Connect 4 Online Free
Arcade drop zonePlay Connect 4 online free against the computer or a friend. Drop your discs and connect four in a row — horizontally, vertically or diagonally — before your opponent does. Choose Easy, Medium or Hard to play Connect 4 vs computer on a Minimax-powered engine, or invite a friend for Connect 4 multiplayer. No download or sign-up needed.
How to play Connect 4
- 1
The board is a grid standing on end — 7 columns wide and 6 rows tall — and the goal is to be the first to connect four of your own discs in a row.
- 2
Red drops first, then Yellow, alternating one disc per turn.
- 3
Click or tap any column to drop your disc into it — gravity pulls it straight down to the lowest empty slot in that column, so you can't choose the exact row.
- 4
Connect four of your discs in a row to win — horizontally across, vertically up a column, or diagonally in either direction. The board highlights the winning line the moment it happens.
- 5
Watch the whole board, not just your own discs — you need to notice and block your opponent's three-in-a-row before they can complete it.
- 6
If all 42 slots fill up and nobody has connected four, the game ends in a draw.
- 7
Play solo against the computer at Easy, Medium or Hard, or switch to Play with Friend for local pass-and-play on one screen or an online invite link across two devices.
Everything packed in
Play vs Computer
Face the Minimax engine across 3 difficulty levels.
Play with a Friend
Share an invite link and play live across two devices.
Resizable board
Switch between Small, Medium and Large to suit your screen.
Fits every screen
The full board stays visible on phone, tablet and desktop.
Win celebrations
A confetti-filled popup crowns every victory.
Light & dark
A warm theme that follows your system preference.
Tips & strategy
Grab the centre column when you can — it takes part in the most winning lines.
Always scan for the opponent's three-in-a-row and block it before it becomes four.
Build a 'double threat' — two ways to win at once — so a single block can't save them.
Frequently asked questions
Is Connect 4 free to play online?
Yes — this is a completely free Connect 4 game with no download and no sign-up. Just load the page and start dropping discs.
How does the computer decide its move?
It uses a Minimax search that looks several moves ahead to play Connect 4 vs computer; harder levels search deeper and play tighter defence.
Can I play Connect 4 with a friend?
Yes — switch to Play with Friend and share the invite link for Connect 4 multiplayer across two devices, or pass-and-play locally for 2 player Connect 4.
What's a good Connect 4 strategy for beginners?
Control the centre column, always block your opponent's three-in-a-row, and look for a double threat — two winning moves at once — so a single block can't stop you.
Ready for another round?
Scroll back up to the board, pick your mode and difficulty, and jump straight into Connect 4.
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