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Play Lights Out Online

Play a complete 5x5 Lights Out puzzle where each press toggles its light and orthogonal neighbors, with three guaranteed-solvable layouts, live light and move counts, completion detection, accessibility labels, difficulty switching, and instant restart. Play free with no account or download.

Choose puzzle level

Single-player puzzle

No multiplayer mode

Your turnScore 0

How to play

Play a complete 5x5 Lights Out puzzle where each press toggles its light and orthogonal neighbors, with three guaranteed-solvable layouts, live light and move counts, completion detection, accessibility labels, difficulty switching, and instant restart. Choose a puzzle level, make your move, and use Restart whenever you want a fresh game.

Strategy tips

  • A press changes the chosen light plus its orthogonal neighbors.
  • Work systematically from the top row downward so each row guides the next.
  • Pressing the same square twice cancels itself, so every useful square needs at most one press.

FAQ

Is Lights Out free?

Yes. It is free to play in your browser.

Do I need an account?

No account or email is required.