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Streamline electrical design and permitting with powerful tools for load calculations, panel schedules, and single-line diagrams. Quickly reference the National Electrical Code with an AI-powered chatbot and generate instant PDF reports for inspectors and clients.
1.0.26
June 26, 2026
Performance improvements
Yes, Kopperfield contains advertisements. As a free utility app, it is supported by ads to provide its features to users.
The NEC chatbot in Kopperfield provides quick reference for specific sections of the 2017, 2020, and 2023 National Electrical Code.
Yes, Kopperfield supports load calculations for both commercial and residential projects, including various dwelling unit types and commercial occupancy types.
Kopperfield includes tools to complete panel schedules and create labels. It also features AI panel photo processing to automatically add items to your load calculation or panel schedule.
Kopperfield supports the Standard (NEC Article 220 Part III), Optional (NEC Article 220 Part IV), and 2026 Standard (NEC Article 120 Part III) methods for electrical load calculations.
Yes, Kopperfield allows you to instantly generate downloadable, one-page PDF reports of your load calc, line diagram, or panel schedule, which can be shared with inspectors and customers.
Kopperfield is available on iPhone and iPad devices.
The latest version of Kopperfield is 1.0.20, and it was last updated on March 14, 2026.