Best Free Lights Out
Click a cell to toggle it and its neighbours — turn every light off to win.
Level 1
press P to pause
Love best.free? Share it
How to play
- Click a cell. Clicking a cell toggles it and its four orthogonal neighbours on or off.
- Chase the lights off. Plan your clicks to knock out the lit cells without switching others back on.
- Clear the board. Turn every light off to win — try a bigger grid for a harder puzzle.
About Lights Out
The classic toggle puzzle. You are faced with a grid of lit cells, and clicking any cell flips it and its four orthogonal neighbours on or off. The goal is to turn every light off — trickier than it looks, because each click affects up to five cells at once. Every board is built by applying random clicks to an all-off grid, so it is always solvable. Choose a 3×3 for a gentle start, 5×5 for the classic, or 7×7 for a brain-bender. It runs in your browser — no signup.
Frequently asked questions
Click or tap any cell and it toggles itself plus the cells directly above, below, left and right of it. Your aim is to switch every light off.
Easy is 3×3, Normal is the classic 5×5, and Hard is 7×7. The board resizes to fit while keeping the layout steady.
Yes. Each puzzle starts from an all-off grid and applies a series of random clicks, so a sequence that turns the lights back off always exists.
That is the puzzle: a click flips up to five cells — the one you pressed and its four neighbours. Solving it means choosing clicks whose overlaps cancel out.
By the number of moves you use, along with how many lights are still on. Fewer moves is a better solve.
Yes — free, with no signup and no download. It runs entirely in your browser.
Yes. It runs in your browser, so Lights Out works on phones and tablets as well as desktop — there is no app to install.
No. Lights Out works with no signup at all; an optional free account only exists to unlock higher usage limits.
Usually just a few seconds for a typical file — Lights Out starts working the moment you give it your input.
Your input is processed in memory and never stored, so nothing is left behind once you have your result.