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Realtime Typing Trainer

Performance-focused typing practice platform with real-time multiplayer features and comprehensive training modes.

Key Features

  • Real-time Session Mode: Live typing practice with real-time spectators watching your progress
  • Competition Mode: Multiplayer racing with live leaderboards and head-to-head competition
  • Tournament Mode: Bracket-style elimination tournaments for competitive typing events
  • Solo Practice Mode: Offline training for improving speed and accuracy without pressure
  • Live Performance Tracking: Real-time WPM, accuracy, and error analytics during practice

Technical Implementation

Built with React and TypeScript, leveraging PartyKit for real-time WebSocket communication. The platform provides instant synchronization of typing progress across all participants with sub-100ms latency.

Core Technologies

  • Frontend: React 19 with concurrent rendering for smooth real-time updates
  • Real-time Infrastructure: PartyKit serverless WebSocket platform
  • Routing: TanStack Router for type-safe navigation
  • Analytics Engine: Real-time WPM calculation, accuracy tracking, and error pattern analysis
  • Testing: Vitest for comprehensive unit testing

Architecture Highlights

  • Serverless real-time infrastructure with automatic scaling
  • Session management with unique shareable URLs
  • Character-level analysis for detailed performance insights
  • Type-safe throughout with full TypeScript coverage

Impact & Results

  • Real-Time Performance: Sub-100ms latency using PartyKit’s serverless infrastructure
  • Scalable Architecture: Automatic scaling without server management
  • Comprehensive Training: Multiple modes for different skill levels and goals
  • Live Competition: Real-time leaderboards and multiplayer racing
  • Detailed Analytics: WPM, accuracy, and error tracking with character-level insights