8, a powerful and free open-source wavefunction analyzer used in quantum chemistry.
Important Note: The developers also request that you cite the version number (3.8) and the website URL in the acknowledgments or methods section to ensure reproducibility. multiwfn 3.8 download
http://sobereva.com/multiwfn/
sobereva.com/multiwfn.Multiwfn_3.8_bin_Win64.zip (for Windows) or Multiwfn_3.8_bin_Linux.zip (for Linux).Multiwfn_3.8_src.tar.gz for custom compilation.http://multiwfn.codeplex.com/ (Legacy, redirects)