Four in a Row
Connect four pieces to win!
Drop pieces to connect 4 horizontally, vertically, or diagonally.
What Is This Tool?
Play Connect Four free in your browser — no download, no account, and no ads interrupting the game. Choose vs AI to play solo against the computer, or 2 Players to play with a friend on the same device. Take turns dropping pieces into the grid, and be the first to connect four in a row — horizontally, vertically, or diagonally — to win.
How to Use
- Choose vs AI to play against the computer, or 2 Players to play with a friend.
- In vs AI mode, the game shows Your Turn or "AI is thinking" so you always know what's happening.
- In 2 Players mode, Player 1 and Player 2 take turns dropping pieces.
- Click or tap a column to drop your piece — it falls to the lowest open space in that column.
- Connect four of your pieces in a row, column, or diagonal to win — the game shows You Win or AI Wins.
- Check the Draws count to see how many rounds ended with the grid full and no winner.
Common Use Cases
- Playing a quick head-to-head match with a friend on the same device
- Practising strategic planning against the computer opponent
- Taking a short break between work or study sessions
- Keeping kids entertained with a simple, easy-to-learn strategy game
- Replaying a familiar classic game without installing anything
Tips & Tricks
- Dropping pieces in the centre column tends to open up more potential winning lines than the edges.
- Watch for your opponent building three in a row and block the open end before they can complete it.
- Try to set up two different ways to win at once — your opponent can only block one column.
- In vs AI mode, wait for "AI is thinking" to finish before planning your next move.
- In 2 Players mode, agree on who goes first each round so turns stay fair over a session.
Frequently Asked Questions
Is this Connect Four game free to play?
Yes — completely free, with no account, no download, and no installation required.
Can I play against a friend?
Yes. Choose 2 Players to take turns as Player 1 and Player 2 on the same device.
Can I play against the computer?
Yes. Choose vs AI to play You against the computer, which takes its turn while "AI is thinking" is shown.
How do I win?
Connect four of your own pieces in a row — horizontally, vertically, or diagonally — before your opponent does.
What happens if the grid fills up with no winner?
The round ends in a draw, and it's added to the Draws count.
How do I drop a piece?
Click or tap the column you want to play in — your piece falls to the lowest open space in that column.
Can I play on a phone?
Yes, columns can be tapped on a touchscreen as well as clicked on desktop.
Do I need an internet connection while playing?
Once the page has loaded, the game runs entirely in your browser, so gameplay doesn't depend on a live connection.
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