A keyboard-first, offline-first cube timer for serious speedcubers. Cleaner than CSTimer, focused on precision and flow.

Main Screen	Inspection Time
Solving Time	Result

Built by cubers, for cubers. No accounts, no cloud sync, no ads. Just timing.

• High-precision timing using performance.now() for microsecond accuracy
• CSTimer-style spacebar interaction: hold to ready, release to start, press to stop
• WCA inspection support: configurable 15-second countdown with +2/DNF penalties
• Visual state feedback: clear color changes for idle, inspection, running, and stopped states

• All WCA events supported: 2×2 through 7×7, Pyraminx, Skewb, Square-1, Clock, Megaminx
• Seeded random-state scrambles for reproducibility
• Extensible architecture for adding non-WCA puzzles

• Rolling averages: Mo3, Ao5, Ao12, Ao50, Ao100, Ao1000
• Best, worst, and session mean
• MoXAo5: Configurable mean-of-X average-of-5
• Personal best detection and highlighting

• Configurable split phases: define your own method phases
• Presets for popular methods: CFOP, Roux, ZZ, Petrus
• Real-time split marking during solves
• Post-solve breakdown with per-phase durations and percentages

• Offline-first: all data stored locally via IndexedDB or localStorage
• CSTimer import support (.txt exports only)
• Session-based solve organization
• No network calls, no cloud sync, no accounts

• Node.js 18+
• npm or yarn

git clone https://github.com/yourusername/kubetimr.git
cd kubetimr
npm install
npm run dev

npm run build
npm run preview

src/
├── types.ts           # Core domain types
├── rng.ts             # Deterministic PRNG for scrambles
├── timingEngine.ts    # High-res timing state machine
├── scrambleEngine.ts  # Scramble generation for all events
├── statsEngine.ts     # Statistics computation
├── splits.ts          # Training split utilities
├── persistence.ts     # IndexedDB/localStorage adapter
├── main.tsx           # React entry point
└── ui/
    ├── App.tsx        # Main application component
    ├── AppContext.tsx # Global state management
    ├── hooks/
    │   └── useTimer.ts
    └── components/
        ├── TimerDisplay.tsx
        ├── ScrambleDisplay.tsx
        ├── StatsPanel.tsx
        ├── SolveList.tsx
        ├── Settings.tsx
        ├── SplitEditor.tsx
        ├── SplitMarkers.tsx
        └── SplitBreakdown.tsx

1. Keyboard-first: Everything usable without a mouse.
2. Zero friction: No modals, no onboarding, no interruptions.
3. Instant feel: Optimized for low-end devices.
4. Privacy by default: No accounts, no tracking, no network calls.

MIT License — see LICENSE for details.