CodeMaster - Algorithm Learning Assistant

About

Stop grinding LeetCode randomly. Start learning algorithms scientifically.

  CodeMaster is an intelligent learning assistant that transforms your algorithm practice into a personalized, retention-optimized system. Unlike traditional problem
  lists, CodeMaster uses proven cognitive science principles to ensure you actually master algorithms—not just solve them once and forget.

  🧠 SMART SPACED REPETITION

  Never forget a pattern you've learned. Our Leitner-based system automatically schedules problem reviews at scientifically optimal intervals:

  • 5-Box Progression System: Problems advance through mastery levels (Daily → Every 3 days → Weekly → Monthly → Archived)
  • FSRS Algorithm Integration: Personalized forgetting curves adapt to YOUR individual learning pace
  • Intelligent Review Scheduling: Due problems surface automatically—no manual tracking needed
  • Decay-Aware Tracking: Problems you haven't seen in months get prioritized to refresh your memory

  Returns from a 2-year break? CodeMaster knows what you've forgotten and rebuilds your foundation efficiently.

  📊 ADAPTIVE LEARNING ENGINE

  Your sessions evolve with your performance:

  • Dynamic Difficulty Adjustment: Problems get harder as you improve, easier when you struggle
  • Pattern Ladder System: Master algorithms progressively within each category (Arrays → Two Pointers → Sliding Window → Advanced)
  • Tag Mastery Tracking: See exactly which topics you've mastered and which need work across 50+ algorithm patterns
  • Multi-Factor Problem Selection: 9+ criteria analyzed to choose optimal next problems (mastery level, recent performance, learning velocity, weak areas)

  No more guessing which problem to do next. CodeMaster always knows.

  🎯 SEAMLESS LEETCODE INTEGRATION

  Practice on LeetCode, track progress in CodeMaster:

  • Automatic Problem Capture: Click one button to log attempts—no manual data entry
  • Built-In Timer: Track time spent without switching tabs
  • Smart Hint System: 50+ algorithm-specific strategy guides with progressive hint disclosure
  • Content Script Overlay: Lightweight interface floats on LeetCode pages—zero friction

  Works on every LeetCode problem page. No account linking required.

  📈 INSIGHTFUL ANALYTICS DASHBOARD

  Data-driven progress tracking that actually helps:

  • Tag Mastery Heatmaps: Visualize strengths and weaknesses across algorithm categories
  • Box Distribution Charts: See your retention pipeline at a glance
  • Session History Analytics: Accuracy trends, time-per-problem metrics, productivity insights
  • Learning Velocity Tracking: Measure improvement rate per topic
  • Pattern Coverage Reports: Ensure balanced topic exposure (70% ladder completion requirement)

  Turn vague "I should do more DP" into concrete "I'm 60% through DP Easy, 30% Medium—here's what to focus on."

  🔒 PRIVACY-FIRST DESIGN

  Your learning data belongs to you:

  • 100% Local Storage: All data stays on your device via IndexedDB
  • Zero Cloud Dependencies: No servers, no accounts, no tracking
  • No Data Transmission: Extension never sends anything anywhere
  • Complete Control: Export, delete, or reset your data anytime

  We can't see your data because we never collect it.

  🚀 PERFECT FOR

  Interview Prep: Spaced repetition ensures long-term retention, not short-term cramming

  Returning Users: Studied 4 months → Got job → Interviewing again 2 years later? Start where you left off with intelligent recalibration

  Structured Learners: Pattern ladders provide clear progression paths through algorithm topics

  Data Enthusiasts: Detailed analytics show exactly where your time is best spent

  Busy Professionals: Adaptive sessions optimize learning efficiency—no wasted time on topics you've mastered

  ⚡ KEY FEATURES AT A GLANCE

  ✅ Leitner spaced repetition with FSRS stability tracking
  ✅ Adaptive session generation based on real-time performance
  ✅ 50+ algorithm pattern categories with curated strategy guides
  ✅ Progressive hint system (pattern → strategy → optimization)
  ✅ Comprehensive analytics dashboard with Recharts visualizations
  ✅ LeetCode content script integration with timer
  ✅ Pattern ladder progression with difficulty scaling
  ✅ Tag mastery engine with decay score tracking
  ✅ Session history with productivity insights
  ✅ Focus area customization and learning goal setting
  ✅ Onboarding flow for new users
  ✅ Dark mode support

  📚 SCIENCE-BACKED LEARNING

  Based on research-proven principles:

  • Spaced Repetition: Review at optimal intervals (Ebbinghaus forgetting curve)
  • Graduated Difficulty: Start easy, increase challenge as competence grows (Zone of Proximal Development)
  • Interleaved Practice: Mix topics to improve discrimination and retention
  • Retrieval Practice: Active recall strengthens memory more than re-reading solutions

  CodeMaster applies learning science to software engineering education.

  🎓 WHO BENEFITS MOST

  • Students preparing for technical interviews at FAANG companies
  • Self-taught developers building algorithmic foundations
  • Bootcamp graduates strengthening computer science fundamentals
  • Professionals returning to interviewing after years in a role
  • Competitive programmers tracking practice systematically
  • Anyone tired of forgetting algorithms they've "learned" before

  Ready to stop forgetting and start mastering?

  Install CodeMaster and transform your algorithm practice from random grinding into systematic mastery.