TwoHiggsCalc is a Two Higgs Doublets models Parameters Calculator written in C. It has been designed to compute input values for the 2HDM extension of MadGraph but it can also be used as an independent tool. Starting from parameters of the Lagrangian, such as the v.e.v. or the Yukawa couplings, the program computes useful physical quantities at leading order such as the mass spectrum, the mixing matrix, the total decay widths and the branching ratios.
This is reported as not compatible with MG5 and bugged. Use with extreme caution (or better not use this tool)