Play Tic Tac Toe online. Make your winning line.

Start playing Tic Tac Toe online

1. Open the board. Play Tic Tac Toe Online loads Same device mode.
2. Choose a mode. Share this screen, choose Play with a friend for an invitation, or select Vs computer.
3. Place the first X. Tap or click any empty square. O takes the next turn.
4. Watch all the lines. Complete your line before the other side does: three pieces on 3×3, four on 5×5 or five on 7×7.

There is no need to set up a profile before playing. Wait for the board to finish loading, then follow the active-player indicator.

Choose 9, 25 or 49 squares

Use the size selector above the board. Classic 3×3 needs three in a row, 5×5 needs four, and 7×7 needs five. All sizes support each playing mode. New rounds keep the current size. Once a friend has joined an online table, both players must agree to a size change; making a move cancels a pending request.

Play 25 squares ↗ · Play 49 squares ↗

Choose your Tic Tac Toe opponent

Play with two people on one screen

Tic Tac Toe 2 Player covers sharing a phone, tablet or computer. Alternate taps or mouse clicks while both players see the board.

Send a friend a private link

Tic Tac Toe with a friend explains how to create a room and invite someone from another device. The creator takes X and the guest takes O. Private rooms do not find random opponents.

Practise on your own

Tic Tac Toe vs Computer gives you X against an automatic O opponent. Work on blocking a line, recognising forks and keeping the board safe.

The classic game of noughts and crosses

Classic Tic Tac Toe uses three rows and three columns. You can also choose 5×5 (25 squares) or 7×7 (49 squares). One side places X, the other O. Each empty square can be used once, so the board gradually fills and every move changes the remaining possibilities.

A line of three on 3×3, four on 5×5 or five on 7×7 wins. Rows, columns and diagonals count. A full board without a winning line is a draw. That short ruleset makes the game quick to learn, but a player still needs to notice immediate threats before planning a clever move.

All three sizes work with a friend, on one device or against the computer. For the controls, turn order and rematch behaviour, see the complete Tic Tac Toe rules.

Play comfortably and keep your progress

Use touch on a mobile device or a mouse on a computer. Keyboard players can move focus with Tab and activate a square with Enter or Space. Winning cells are highlighted so both sides can see the completed line.

Local rounds can resume from saved moves in the same browser when storage is available. For an online room, return with the same browser and invitation to keep your seat. Both people need to stay connected to make online moves.

Start a new round when you want a clear board. X begins again, so decide who controls each piece before a shared-device rematch.