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Free Tools for
Licensed Electricians

Five browser-based tools that run entirely on your device. No account, no internet connection required for basic use, no cost — ever.

New: All tools work offline after first load

Your 5 Free Tools

Click any tool to open it — no login required. Bookmark the ones you use daily.

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Most Used
Wire Size Calculator
Input amperage, distance, and wire type — get the correct AWG per NEC 310.15. Includes voltage drop, derating, and continuous load calculations.
NEC 310.15 · 210.20 · 215.2
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Panel Upgrades
Panel Load Calculator
Check if a panel can handle added load. Add circuits, calculate total demand, see green/yellow/red capacity status. Includes EV charger impact analysis.
NEC 220.82 · 220.87
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Before Every Job
Permit Checklist Generator
Select your job type and state — get a complete permit and inspection checklist. Covers all 50 states, NEC adoption editions, and common AHJ gotchas.
All 50 States · NEC 2017 / 2020 / 2023
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Price Your Jobs
Material Price Estimator
80+ electrical materials with quantity inputs and markup calculator. Get supply cost + marked-up price in one table. Export as CSV or print for your supplier.
Updated Q1 2026 · 20% markup default
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Works Offline
Job Log
Track jobs, hours, and status entirely in your browser. No account needed — data lives on your device. Export to CSV anytime for QuickBooks or your accountant.
No account · No internet · 100% private
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