Best Electrical Code Apps

Conductor sizingVoltage drop limitationsCircuit protection sizing

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

Master Electrician Ref. Lite

(197)

free

A handbook for electricians

Motor and wiring informationAmpacity tablesConduit fill and grounding sizes

This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

Electrical circuit colors

Global country-specific wire color codesExtensive circuit database (up to 1000 circuits)Quick search for phase colors

This app helps electricians and DIYers identify electrical wire colors globally. It offers country-specific codes, a large circuit database, and quick search functionality. Customize colors for your projects and enjoy a user-friendly interface for efficient electrical panel wiring.

📊 Productivity

(999)

free with in-app purchases

MasterCode NEC

NEC Answers for Electricians.

🔍 Reference

NEC 2023 Journeyman Exam Prep

Electrical Code Meister

📚 Education

Ugly's Electrical References

by Informed Publishing

$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

NEC 2026 updatesMathematical formulas and calculatorsConduit bending guide with videos

8000+ Questions & Explanations

8000+ exam-style questions20 NEC calculatorsQuick reference guide

Prepare for electrician certification exams with over 8,000 practice questions and detailed explanations. Access a comprehensive quick reference guide and 20 professional NEC calculators for on-the-job use. Track work hours with a built-in log for state board submissions.

📚 Education

(161)

free with in-app purchases

NEC Code Studio & Tools

Electrical Code Illustrations

Captain Code NEC Code Changes

Guide from 2023 - 2014

Searchable by market vertical, product, or article numberDirect NEC text extractionExpert analysis from IAEI

This app provides electrical professionals with up-to-date National Electrical Code information. It offers searchable access to code changes, expert analysis, and manufacturer insights, complete with illustrations to aid comprehension.

by Creature Code Mobile, LLC

Ohm's Law calculationsVoltage calculationCurrent calculation

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

free with in-app purchases

(165)

Code Buddy

#1 AI Tool for Skilled Trades

AI-powered code queryingReal-time translationUp-to-date code libraries (NEC, OSHA, ANSI)

This AI-powered tool helps skilled tradesmen quickly find and understand electrical codes and requirements. It offers real-time translation and up-to-date references for various standards, assisting with compliance and efficiency on the job.

Electrical Wire Color Codes

(6)

freemium

Circuit color reference

Tool for the EU EC Guidelines

💼 Business

TruePhase - Circuit Colors

by Nicole Nalley

Circuit number lookupWire color and phase identificationSaved panels with load descriptions

Quickly find wire colors and circuit phases for electrical panels. Offers free basic lookups and a Pro subscription for advanced features like saved panels, custom labeling, and PDF export.

MasterElec - NEC Code Guide

(1)

freemium

Electrical Voice Assistant

Residential Electrical Work

💼 Business