Best Electrical Code Apps

Master Electrician Ref. Lite

A handbook for electricians

Free

A comprehensive electronic pocket electrician reference guide for electrical professionals and enthusiasts, providing essential information, calculations, NEC tables, and safety manuals. Visit MasterSparky.com for more details and upgrade to the full version for extensive content covering NEC codes over various years.

Mike Holt's Electrical Toolbox

Electrical Power Calculator

Free

An industry-leading electrical power calculator app designed by Mike Holt for electricians, inspectors, contractors, and engineers. Perform conductor sizing, circuit protection, race sizing, and more with this practical and useful tool.

NEC Mastery

8000+ Questions & Explanations

Free

Prepare for your upcoming NEC Exam with over 8000 practice questions, detailed explanations, and references to the NEC sections. Track your progress, customize tests, and access mock exams. Download now to master the latest NEC 2023 Code updates and ace your certification exam.

Ugly's Electrical References

by Informed Publishing

$12.99

This app is a comprehensive electrical reference guide that has been updated to align with the 2020 National Electrical Code. It offers a range of features such as calculators, interactive tools, and in-depth information for electricians, making it a valuable on-the-job resource.

Ohm's Law

by Creature Code Mobile, LLC

Free

Calculate electrical values easily with this Ohm's Law Calculator. Input two known values to quickly determine voltage, current, resistance, or power in any electrical circuit. Start calculating now!

Southwire® Conduit Fill Calc

by Southwire Company

Free

This application helps electricians, engineers, and contractors quickly determine the proper conduit size to use based on NEC guidelines, including fill percentages and jam probability. Simply input conduit type, size, and conductors, and the app will calculate the conduit fill percentage for you.

NEC Electrical Exam by Dakota

NEC Practice Test Questions

Free

Prepare for your NEC Electrical Exam with over 2,000 practice questions and 100 diagrams tailored to Journeyman, Master Electrician, or Electrical Contractor levels. Join thousands of successful electricians by downloading the app today.

Code Buddy

#1 AI Tool for Skilled Trades

Free

"Code Buddy" is an AI-powered tool designed by and for electrical professionals, offering expert guidance and insights. Stay ahead in the electrical field with Code Buddy's specialized knowledge and support.

Journeyman Electrician (2025)

Master NEC Exam Practice Test

Free

Prepare for your journeyman electrician certification exam with this app! Practice tests, mock exams, test history tracking, bookmarking questions, and easy access to NEC concepts make it an essential tool for aspiring electricians in the USA, Australia, and Canada.

Captain Code NEC Code Changes

Guide from 2023 - 2014

Free

This application helps electrical professionals stay current with National Electrical Code compliance by providing a searchable guide of code changes from 2023 to 2014. It offers a comprehensive tool with expert analysis, actual NEC text, and manufacturer insights to simplify code understanding and ensure compliance.

Electrical Calc Elite

NEC Code Calculator

$19.99

This NEC code calculator app is designed for electrical professionals to solve common electrical calculations based on National Electric Codes, providing quick and accurate solutions for code-related problems. It offers a wide range of calculations, including wire sizes, voltage drop, conduit sizing, and more, making it a valuable tool for electricians, contractors, and engineers.

Electrician Handbook — Basics

Electric circuit, voltage, ohm

Free

$5.99 | 100% OFF

An essential Electrician's Handbook for learning electrical theory, circuits, and calculations, suitable for beginners, amateurs, and professionals in the field. Featuring theory explanations, interactive circuit diagrams, calculators, and practical installation guides. Improve your electrical knowledge and skills with this comprehensive manual.

Electric Color Code

by DAE J MYUNG

$0.99

This application helps electricians and construction workers quickly find the color codes of conductors used in United States for single or three phase systems. It's a fast and easy tool to get the job done, try it out today!