[![NWChem_CI](https://img.shields.io/github/actions/workflow/status/nwchemgit/nwchem/github_actions.yml?style=plastic)](https://github.com/nwchemgit/nwchem/actions) [![License](https://img.shields.io/badge/license-ECL2-blue.svg)](https://raw.githubusercontent.com/nwchemgit/nwchem/master/LICENSE.md) ![GitHub top language](https://img.shields.io/github/languages/top/nwchemgit/nwchem) ![Github Downloads All Releases](https://img.shields.io/github/downloads/nwchemgit/nwchem/total) ![Homebrew Downloads](https://img.shields.io/homebrew/installs/dy/nwchem?label=Homebrew%20downloads)![Conda-Forge Downloads](https://img.shields.io/conda/dn/conda-forge/nwchem?label=Conda-forge%20downloads)![Docker Pulls](https://img.shields.io/docker/pulls/nwchemorg/nwchem-700.fedora.sockets?label=Docker%20pulls) ![Github Downloads Release 6.8](https://img.shields.io/github/downloads/nwchemgit/nwchem/v6.8-release/total) ![Github Downloads Release 6.8.1](https://img.shields.io/github/downloads/nwchemgit/nwchem/6.8.1-release/total) ![Github Downloads Release 7.0.0](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.0.0-release/total) ![Github Downloads Release 7.0.2](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.0.2-release/total) ![Github Downloads Release 7.2.0](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.2.0-release/total) ![Github Downloads Release 7.2.1](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.2.1-release/total) ![Github Downloads Release 7.2.2](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.2.2-release/total) ![Github Downloads Release 7.2.3](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.2.3-release/total) ![Github Downloads Release 7.3.0](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.3.0-release/total) ![Github Downloads Release 7.3.1](https://img.shields.io/github/downloads/nwchemgit/nwchem/v7.3.1-release/total) [![All Releases tags](https://img.shields.io/github/release/nwchemgit/nwchem/all.svg)](https://github.com/nwchemgit/nwchem/releases) ![GitHub Release Date](https://img.shields.io/github/release-date/nwchemgit/nwchem) [![EMSL](https://raw.githubusercontent.com/nwchemgit/nwchem/179015c5af4f2b1b397a7f039b85a9aa202f4139/contrib/git.nwchem/emsl_logo2.svg)](https://www.emsl.pnl.gov) ## NWChem: Open Source High-Performance Computational Chemistry NWChem logo NWChem is actively developed by a consortium of developers and maintained by the Environmental Molecular Sciences Laboratory (EMSL), a US DOE Office of Science User Facility located at the Pacific Northwest National Laboratory (PNNL) in Washington State ### Scalable computational chemistry tools Source download instructions for developers * Master ``` git clone https://github.com/nwchemgit/nwchem.git ``` * 7.3.1 Release ``` git clone -b hotfix/release-7-3-0 https://github.com/nwchemgit/nwchem.git nwchem-7.3.1 ``` ### Release 7.3.1 Release files available at the page https://github.com/nwchemgit/nwchem/releases/tag/v7.3.0-release Tar files for download: https://github.com/nwchemgit/nwchem/releases/download/v7.3.1-release/nwchem-7.3.1-release.revision-23c3b41b-srconly.2025-11-06.tar.bz2 https://github.com/nwchemgit/nwchem/releases/download/v7.3.1-release/nwchem-7.3.1-release.revision-23c3b41b-nonsrconly.2025-11-06.tar.bz2 Release notes available at https://github.com/nwchemgit/nwchem/blob/master/release.notes.7.3.1.md ### Documentation https://nwchemgit.github.io