Electrical engineering tools, right in your browser
Voltline turns the calculations engineers do every day into fast, transparent, standards-based tools. No installs, no sign-up, no data leaving your device — just open it and work.
What Voltline stands for
Standards-based
Calculations follow recognised standards such as IEEE 1584-2018 and NFPA 70E — not opaque rules of thumb.
Transparent
Every result is explained and traceable, with both worst-case scenarios shown side by side. No black boxes.
Fast & private
Everything runs in your browser. There is no account and no server storage — your inputs stay on your device.
Tools
Arc Flash Calculator
Incident energy, arc-flash boundary and PPE category per IEEE 1584-2018, with a downloadable report.
More tools coming
Voltline is growing. New electrical-engineering calculators are on the way.
Ready to run an arc-flash analysis?
Get incident energy, arc-flash boundary and PPE category in seconds — then export a clean, shareable report.
Open the Arc Flash Calculator