Find and fix bugs in real code! Sharpen your debugging skills with challenging puzzles.
🔧 Debugging🧠 Logic💡 Problem Solving📗 BEGINNER
🐛 106 real bugs in HTML, CSS, JavaScript & Python. Read the code, spot the wrong line, pick what the bug is.
✅ Correct = +10 XP, +5 coins (🔥 streak 5 = bonus +5 XP)
❌ Wrong = streak reset + the bug explained — you learn it for next time.
⌨️ Keyboard: A/B/C/D or 1-4 to answer · Enter for next bug