CircuitDoc

CircuitDoc is your intelligent electrical engineering companion — built for electricians, engineers, and students working with real-world electrical systems.

🔌 AI LAB
Ask anything about circuits in plain English. Get instant AI explanations, fault analysis, concept breakdowns at beginner to advanced levels, and photo-based circuit analysis using your camera.

⚡ SYMPTOM-BASED FAULT DIAGNOSIS
Diagnose faults in VFDs, Motors, Transformers, MCCs, and PLCs step by step. Select your equipment, brand, and symptom — get targeted diagnostic guidance instantly.

🔧 CABLE SIZING WIZARD
Size cables accurately using IEC and NEC standards. Covers copper and aluminium conductors, installation method derating, and voltage drop calculations.

🧮 MOTOR & TRANSFORMER CALCULATOR
Calculate full load current, starting current, power factor correction, and transformer sizing across multiple tabs.

📐 FORMULA ENGINE
Access a reference library of 100+ electrical formulas across 7 categories. Solve formulas with AI assistance or use the built-in calculator.

🔄 UNIT CONVERTER
Convert across 8 categories, including power, energy, current, voltage, resistance, frequency, and more.

🎯 DAILY QUIZ
Test your electrical knowledge with a daily 5-question challenge. Build streaks, earn points, and get AI explanations for every answer.

Built for global electrical professionals. Works offline for all calculators and tools. AI features require an internet connection.

Whether you're on the job site or in the classroom, CircuitDoc puts expert electrical knowledge in your pocket.