Why we built this

We're not electricians. But when one of us renovated a house in rural Bulgaria — solar panels, 40kWh battery bank, smart relays on every circuit — the panels had to be designed from scratch.

We looked for software. The vendor tools only work with their own products. Everyone else uses Excel or paper.

We just wanted to drag breakers onto a rail, get warned when something's wrong, and print a clean PDF for the inspector. No vendor lock-in. No subscription. No cloud account just to design a panel.

Nobody made it. So we did.

What we believe

• Offline-first. Your designs live on your device. No Internet required. Ever.
• Vendor-neutral. Use whatever components you want. We don't care who makes your breakers.
• One-time purchase. No subscriptions. No renewals. You bought it, you own it.
• No tracking. No telemetry, no analytics, no cookies. We don't know who you are and we like it that way.

BreakerBoxx is a design and planning tool. All designs must be verified by a qualified electrical architect or inspector before installation.