Can I play Tic Tac Toe against the computer?

Yes! Choose Easy AI for a casual game against a random-move opponent, or Hard AI which uses the minimax algorithm and is unbeatable on a 3×3 board.

What is the 5×5 board mode?

On a 5×5 board you need 4 in a row (horizontally, vertically, or diagonally) to win instead of 3. It allows for more complex strategy and longer games.

Does the score save between sessions?

Yes, X wins, O wins, and draws are all saved in your browser's localStorage and persist across sessions until you click Reset Scores.

Tic Tac Toe Unblocked — Play Free Online vs AI

Mode:

Size:

👥 Player vs Player · 3 × 3

X Wins

Draws

O Wins

X's turn

Click / tap a cell to place your mark · Scores are saved automatically

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📖 How to Play Tic Tac Toe tap to expand

3×3 Board: Get 3 in a row (horizontally, vertically, or diagonally) to win.
5×5 Board: Get 4 in a row to win — more room for strategy!

👥 PvP: Two players take turns on the same device.
🤖 Easy AI: The AI makes random moves — great for beginners.
🧠 Hard AI: Uses the minimax algorithm on 3×3 — it is unbeatable! On 5×5 it uses smart heuristics.

Winning cells are highlighted in pink. Scores for X wins, O wins, and draws are saved in your browser.