Electra Calc is a fast online toolkit for electronics engineers, PCB designers, and makers. It brings practical engineering calculators together in one place, covering PCB design, RF calculations, resistor and capacitor decoding, and common component math—so you can get quick answers without digging through spreadsheets or scattered tools.
Zeitrechner.app is a German-first time calculator toolkit for everyday work and planning. It helps users calculate time spans, work hours with breaks, decimal hours, weekly working time, overtime, and downloadable timesheet templates. Fast, mobile-friendly, no signup required.
