xCubes Solver is a free online tool created to help people solve their Rubik's cube. Whether you have a classic 3×3, a tricky 7×7, or a giant 15×15, you can enter the scrambled state of your cube on this site and receive a complete step-by-step solution that brings every face back to a single color.
The project exists for a simple reason: solving a Rubik's cube can be frustrating, and not everyone has the time or patience to memorize algorithms by hand. xCubes Solver removes that barrier — you describe what your cube looks like, and the site walks you through the moves needed to solve it, with each step visualized clearly so you can follow along on a physical cube in front of you.
The solver covers every NxN cube from 2×2 to 15×15: pocket cube, the iconic 3×3, the 4×4 Revenge, the 5×5 Professor's cube, and every larger size produced commercially. For tiny cubes the solution is essentially instant; for the largest cubes a solution typically arrives in under a minute. The site is the same for every size — only the size of the input grid changes.
xCubes Solver does not use artificial intelligence, machine learning, or any kind of trained neural network. Every solution is computed by classical, deterministic search algorithms that have been studied and refined by the cubing community for decades.
For the 3×3 cube the solver uses the two-phase Kociemba algorithm, which is known to produce near-optimal solutions in fewer than 25 moves within milliseconds. For larger cubes — 4×4 and above — the solver uses the reduction method combined with iterative deepening A* (IDA*) search over precomputed lookup tables. These methods are mathematical, fully transparent, and reproducible: given the same scrambled state, the solver will always return a valid solution that, when applied to the cube, leaves it solved.
There is no AI involved in either generating the solution or deciding which algorithm to use. The site is essentially a friendly interface over well-known cubing algorithms, so that anyone — even someone who has never solved a cube before — can benefit from them.
If you've never read cube notation before, check out the notation guide. If you'd prefer a manual method instead of the solver, the 3×3 guide walks you through the beginner-friendly approach.
The solver is free to use, with no sign-up required and no limits on how many cubes you can solve. It is funded entirely by the small advertising banners shown on the site, which lets us keep the tool accessible to everyone in the world at no cost. There are no premium features, no paywalls, and no account is ever needed.
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