Upload the last permit set you submitted — from your in-house designer, your outsourced firm, or anywhere else. We run it against 81 NEC sections and show you exactly what a plan checker is likely to flag, with the code section printed next to each finding.
Nothing about your workflow has to change. You are not switching tools, and you are not firing anyone. You are getting a second opinion on work you already paid for.
A red-line report. Every finding names the sheet, the NEC section, what is wrong, and what it should be. This is a real example of the format — not a mockup of a product that does something else.
NEC 705.12(B)(3)
NEC 310.15(C)(1)
NEC 690.12(B)(2)
NEC 690.7 · 690.8(A)(1) · 220.82
A language model does exactly one job here: it reads your drawing or your sentence and turns it into structured inputs — the same thing a designer does reading your email. It never touches a calculation.
Conductor ampacity, temperature correction, conduit fill, busbar limits and OCPD sizing are deterministic. Same inputs, same numbers, every time.
That is why the report prints the NEC section next to each finding, and why the permit sets do the same on the sheet itself.
You are not asked to trust the output. You are asked to check it — which, with the article number sitting right there, takes about ten seconds per line.
81 NEC sections across the 2017–2026 editions, against the edition your jurisdiction actually enforces. Among them:
No, and it does not need an account. There is a daily per-network cap so the thing stays up, but only successful reads count — if we fail to pick the components out of your drawing, that attempt is handed back to you. A free account raises the cap.
No. The grader reads sets from anywhere. If your designer's work comes back clean, that is genuinely useful to know — and we will tell you so.
We keep them. Uploaded drawings and the reconstructed design are stored so we can measure what the checker reads correctly and fix what it doesn't — the sets it fails on are the ones that teach us the most. They are deleted after two months. They are never published, never sold, and never shown to another customer. The grader needs no account, so nothing here carries your name; the only network detail kept is the same coarse address bucket the rate limiter already uses. If you would rather not upload a real job, describe the system in a sentence instead — that path stores only the sentence.
Build it yourself in about five minutes, or send us the job and we will build it for you — the first one is free.
Upload a PDF or a screenshot of the one-line. Sixty seconds, no account, no card.