Multiwfn 3.8 Download __full__ Here

Multiwfn 3.8 was formally released on January 7, 2026, and is available for download on the official Multiwfn website. This version introduces significant features like the modified IGM (mIGM) for interaction analysis, enhanced support for high-level wavefunctions (e.g., CCSD(T) via ORCA), and new aromaticity indices like HOMAc and HOMER. Essential Resources & Downloads

The following files are hosted on the official Download page: Software Packages:

Windows 64-bit: Multiwfn_2026.4.10_bin_Win64.rar (Recommended for new users for stability and GUI ease). multiwfn 3.8 download

Linux 64-bit: Full versions and no-GUI versions (for command-line use without graphical libraries). macOS: Maintained by the community on GitHub. Documentation:

User Manual: Multiwfn_3.8.pdf — A comprehensive guide with over 100 tutorials and examples in Chapter 4. Multiwfn 3

Quick Start Guide: Multiwfn quick start.pdf — Ideal for beginners to find FAQ and common task indices. Key Usage Tips

6. First Run & Dependency Check

Multiwfn 3.8 requires no external libraries for basic use, but advanced features need: etc.). Version 3.8 includes performance improvements

• GNUplot (for plotting)
• GV (for viewing molecular structures)

If missing, you’ll see warnings; install via:

• Ubuntu/Debian: sudo apt install gnuplot graphviz
• Windows: Place gnuplot.exe in the same folder or add to PATH.

8. Updating from an Older Version

Multiwfn 3.8 is backward compatible but settings files from older versions may cause conflicts. Recommended: Keep separate folders for v3.7 and v3.8, then migrate custom settings.ini manually.

Multiwfn 3.8 — Download & Quick Guide

Multiwfn is a multifunctional wavefunction analysis program widely used in computational chemistry for analyzing electronic structure outputs (Gaussian, Orca, Q-Chem, MOLPRO, etc.). Version 3.8 includes performance improvements, new analysis modules, and expanded format support.

Step-by-Step Installation Guide

Linux Installation (Ubuntu/CentOS)

1. Open terminal and navigate to your downloads folder.
2. Run: tar -xzvf Multiwfn_3.8_bin_Linux.tar.gz
3. Move the folder: mv Multiwfn_3.8 $HOME/Software/
4. Make the binary executable: chmod +x $HOME/Software/Multiwfn_3.8/Multiwfn
5. Add to PATH (optional): export PATH=$PATH:$HOME/Software/Multiwfn_3.8