Build real circuits. See why they fail.
No payment info. No download. Open your browser and start wiring. If it clicks, upgrading takes 30 seconds.
Create a free account, try 3 real simulators, then unlock all 20 modules — including the Circuit Sandbox — with a one-time $49 payment. Your progress saves either way.
Create Free Account →Every module follows the same progression a professional uses on a job — study it, build it, break it, fix it, prove it.
Not a video. You build the circuit and see exactly why it fails.
Wrong grounds cause real failures. No hand-waving.
Fail here. Not on a customer's car.
Power, trigger, ground, output — not textbook theory.
Start free, upgrade when it clicks. One-time payment for solo learners. Monthly for shops.
Browser-based — no install required. Desktop & tablet optimized.
Create a free account in 20 seconds. Try 3 full simulators. Upgrade when you're ready — your progress transfers instantly.