WCA-style everything
Scrambles, inspection rules and averages follow World Cube Association conventions, so practice mirrors competition.
CubeMastery Tools
Everything you need to get faster at the Rubik’s Cube: competition-quality scrambles, a WCA-style timer, algorithm trainers and classic patterns — free, fast and right in your browser.
Scramble Generator
WCA-style scrambles for 2×2 through 5×5 with a built-in practice timer and history.
Pattern Generator
Classic cube patterns like the Checkerboard and Cube in Cube, with copy-ready algorithms.
Cube Timer
Competition-style timer with inspection, hold-to-start, and Ao5 / Ao12 session stats.
Algorithm Trainer
Drill all 57 OLL and 21 PLL cases with generated diagrams and progress tracking.
Cube Solver
Paint in your scrambled cube and get a short step-by-step solution instantly.
Your stats
Solves timed0
Best solve—
Cases drilled0
Trainer accuracy—
Stats come from your own sessions and are stored only in this browser.
Why cubers use CubeMastery
Free, no account needed
Every tool is free to use instantly. No signup, no paywall, no ads interrupting your session.
Your data stays local
Solves, scores and preferences are stored in your browser only — nothing is sent to a server.
Built for speed
Keyboard-first controls: Space to scramble, hold-to-start timing, instant page switches.
Verified algorithms
Every trainer case diagram is generated from its algorithm by a cube simulator, so they always match.
Works on any device
Fully responsive dark interface with touch support for timing solves on your phone.