Tell it what you're dealing with. It figures out the code.
MasterCode isn't a digital code book. It's an AI that understands jobsite scenarios — it asks the right clarifying questions and gives you a field-ready answer with NEC references and inspector notes.
Not a code book. A code expert.
Bottom-Line Answers
No fluff, no maybe. Get a direct answer you can act on — with the NEC citation to back it up.
Inspector Interpretation
Know what inspectors actually look for in the field, not just what the book says. Pass on the first trip.
State Code Selector
Each state adopts NEC on a different cycle. MasterCode adjusts answers based on your state's adopted edition.
Confidence Rating
Every answer includes a confidence level — so you know when the code is black-and-white versus when to verify with your AHJ.
Math Done For You
Wire sizing, conduit fill, derating, motor calcs — the math is shown step by step so you understand the answer.
Voice or Text Input
Ask out loud or type it. Works with gloves on. Built for the job site, not the office.
Ask. Clarify. Get the answer.
Ask your question
Type or speak your field scenario in plain language — no code knowledge required to ask.
Answer a quick question
MasterCode may ask one or two clarifying questions to nail down the exact conditions of your job.
Get a field-ready answer
Receive a direct answer with NEC citations, inspector notes, the math, and a confidence rating.
What a MasterCode answer looks like
Put a code expert in your pocket.
MasterCode is launching soon on iOS and Android. It'll be free — and ready with a field-ready answer on your next job.