Best Electrical Circuit Color Apps

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Mike Holt's Electrical Toolbox

Electrical Power Calculator

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.

This app helps electricians and construction workers quickly identify the color codes for electrical conductors in US single or three-phase systems. It's a straightforward tool designed for efficiency on the job.

US conductor color code lookupSingle phase system supportThree phase system support

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Electrician Handbook — Basics

Electric circuit, voltage, ohm

Electrical theory topicsInteractive circuit diagramsCalculators and formulas

$5.99 | 100% OFF

This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.

🔍 Reference

(965)

free

Electrical Wiring Simulator

Practice Anytime, Anywhere

Step-by-step simulationsReal-world wiring practiceLoad control and switching

$19.99 | 100% OFF

Practice real-world electrical wiring skills with interactive, step-by-step simulations. Learn load control, parallel/series wiring, and troubleshooting without tools or risk. Ideal for students and aspiring electricians.

📚 Education

(49)

Master Electrician Ref. Lite

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.

This app provides a realistic electrical circuit simulation experience for learning and design. It features an extensive component library, intuitive drag-and-drop controls, and smart error detection for both household and industrial circuits. Learn, design, and test circuits safely and efficiently on your mobile device.

Real-time component simulationDrag-and-drop circuit designExtensive component library (100+ items)

🔧 Utilities

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freemium

Electrical Code-A-Day

Quiz for Electricians

Daily electrical code questionsQuestions written by a real electricianCovers a wide range of electrical topics

Test your electrical knowledge daily with a new question based on the US electrical code. Perfect for apprentices, journeymen, and masters seeking to learn or refresh their understanding of electrical concepts and regulations.

Electronics Engineer Helper

(8.6K)

free

Calculators and references

Datasheet searchResistor color code calculatorElectronic schematic symbols

This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.

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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

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Breaker Box: Panel Directory

Manage your electrical panels.

Create custom panel legendsLabel phases with colorSupport for tandem breakers

Easily create custom electrical panel legends. Label phases with colors, tandem breakers, and 3-pole breakers. Print legends in exact sizes for sleeves or door taping.

🔧 Utilities

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Resistor color code Calculator

Resistor color code calc

Calculates resistance for 3-6 band resistorsVisual band color selectionDisplays resistance and tolerance

This utility helps you determine the resistance value of resistors by interpreting their colored bands. It supports 3, 4, 5, and 6 band resistors, visually displaying your selections and the calculated resistance and tolerance.

🔧 Utilities

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ad-supported

Electrician's Sidekick

by IDEAL INDUSTRIES, INC

Conduit bending calculatorWire sizing and voltage drop calculatorConduit fill calculator

This free tool consolidates essential electrical calculations and reference guides into a single app. It offers precise tools for conduit bending, wire sizing, voltage drop, and conduit fill, designed to enhance fieldwork efficiency and accuracy for professionals. The app functions offline, ensuring constant access to critical information.

All in one electricians tools

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free

Electrician Handy Tool

Voltage drop calculatorConduit bending calculatorFraction calculator

This app provides electricians with essential tools for conduit bending, calculations, and quick reference. It simplifies electrical work with features like voltage drop calculation and a user-friendly fraction calculator.

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Electrical Wire Color Codes

Circuit color reference

This utility app helps electricians and DIYers quickly identify and number electrical phases in single and three-phase circuits. It provides color codes for common voltage configurations and allows for easy navigation and bookmarking of circuit numbers.

Identify 120/240 single phaseIdentify 120/208 three phaseIdentify 277/480 three phase

Build and simulate electronic circuits with dynamic animations of voltage, current, and charge. Adjust parameters in real-time and generate input signals with your finger. Explore a vast library of components and community designs.

Dynamic voltage, current, and charge animationsReal-time parameter adjustment with analog knobArbitrary input signal generation with finger

📚 Education

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