Simple tools
Run quick load calculations, code lookups, and line diagrams in minutes. No learning curve or extra work. Simple tools to get the job done.
Load Calculator
Run residential load calculations in minutes instead of half an hour. Enter your property details and appliance loads, and get demand factors and panel capacity answers right away.
Code Lookup
Check electrical codes in plain English and get answers backed by real national code guidelines and clauses. Faster than pdfs and more reliable than a Google search.
Line Diagram
Build electrical circuit diagrams on a simple drag-and-drop canvas. Pick components from a library, place them, and connect them. Replaces pen-and-paper and clunky legacy software.
Built for How You Work
Every tool saves you time. They work where you do, follow the code, and stay out of your way.
Jobsite ready
Use Breakerbox on the jobsite, in the truck, or at your desk. If you have a phone or laptop - it works.
Code compliant
Calculations and code references follow the national guidelines. You get answers you can trust.
Any Device
Breakerbox runs on any browser. No installs, no updates, no desktop-only modes.
Fast & Simple
No training needed. Every tool is built to be simple-stupid. Get in, get your answer, move on.