| Calculator | Online calculator, unit conversions, and database of constants. Also has free downloadable version. |
| CircuitCalculator | Online calculators for resistor and capacitor values, trace width for printed circuit boards. |
| Engineering ToolBox | Online computational and reference modules - includes static, dynamic and numerical analyses, fracture mechanics, and various utilities. |
| GaLa Reinforcement | Analysis of reinforced concrete elements. |
| XcalcS | Online tools for engineering calculations in structural analysis of beams, pipes, plates, vessels etc. |
