Play Tic Tac Toe Online Free
Quick-play gridPlay Tic Tac Toe online free against the computer or a friend. The classic 3×3 game of Xs and Os — get three in a row to win. Choose Easy or Medium for a fair fight, or try Perfect difficulty, where the Minimax AI never loses. No download or sign-up needed, just quick Tic Tac Toe with friends in seconds.
How to play Tic-Tac-Toe
- 1
The board is a simple 3×3 grid of nine squares, and the goal is to be the first to line up three of your own marks in a row.
- 2
X always goes first, then players alternate turns — one mark per turn, tapping any empty square to claim it.
- 3
Get three of your marks in a row to win — across a row, down a column, or along either diagonal counts.
- 4
Once a square is taken it can't be changed or moved, so think a move ahead before you tap.
- 5
If all nine squares fill up and neither player has three in a row, the round ends in a draw.
- 6
Play solo against the computer — choose Easy or Medium for a fair fight, or Perfect if you want a real challenge — or pick Play with Friend for quick local rounds or an online invite link.
Everything packed in
Play vs Computer
Face the Minimax (perfect) 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
Open with a corner or the centre — both create the most winning chances.
Watch for a move that makes two lines at once; that's an unstoppable fork.
Against the Perfect AI, best play always ends in a draw — your goal is to avoid slipping up.
Help center
Frequently asked questions
Quick answers about rules, online play, setup, and what to expect before you start a round.
Ready for another round?
Scroll back up to the board, pick your mode and difficulty, and jump straight into Tic-Tac-Toe.
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