Tic-Tac-Toe Online
Classic Tic-Tac-Toe
Classic 3×3 Tic-Tac-Toe (noughts and crosses). Take turns placing X and O; the first to line up three in a row — horizontally, vertically or diagonally — wins. Play online vs a friend or an AI you can set from easily beatable to essentially unbeatable.
2AI
Play vs the computer
A single-player match against the AI — runs right here in your browser.
Create a room
Pick a game and player count, then share the invite code.
How to play
- 3×3 grid, two players: X and O.
- Players alternate placing their mark on an empty cell.
- Win by getting three of your marks in a row, column or diagonal.
- The board filling up with no line is a draw.
- X (you) moves first.