3.8 ((install)) Download — Multiwfn

The 3.8 release marks a major milestone in the software's 15-year development history. Key updates include:

Ability to analyze wavefunctions from methods like CCSD(T) and MP5 via ORCA 6.1 integration. multiwfn 3.8 download

Windows is the most stable platform for Multiwfn and requires minimal setup. Download the Multiwfn_3.8_bin_Win64.rar file. Extract the contents using a tool like WinRAR or 7-Zip. Double-click Multiwfn.exe to start. Download the Multiwfn_3

New variants of the Independent Gradient Model (IGM) for studying weak interactions in static and fluctuating environments (e.g., molecular dynamics). Aromaticity Indices: Support for HOMAc and HOMER indices. New variants of the Independent Gradient Model (IGM)

is a comprehensive, open-source program designed for high-efficiency wavefunction analysis in quantum chemistry. Formally released on January 7, 2026 , this version introduces significant enhancements, including support for high-level wavefunctions (CCSD(T), CCSDT) and the implementation of the modified Independent Gradient Model (mIGM). Direct Download Links

The official source for all Multiwfn versions is the Multiwfn Official Website . Download Binary (RAR)