Chemistry Software for Windows

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Browse free open source Chemistry software and projects for Windows below. Use the toggles on the left to filter open source Chemistry software by OS, license, language, programming language, and project status.

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  • 1
    Jmol

    Jmol

    An interactive viewer for three-dimensional chemical structures.

    Over 1,000,000 page views per month. Jmol/JSmol is a molecular viewer for 3D chemical structures that runs in four independent modes: an HTML5-only web application utilizing jQuery, a Java applet, a stand-alone Java program (Jmol.jar), and a "headless" server-side component (JmolData.jar). Jmol can read many file types, including PDB, CIF, SDF, MOL, PyMOL PSE files, and Spartan files, as well as output from Gaussian, GAMESS, MOPAC, VASP, CRYSTAL, CASTEP, QuantumEspresso, VMD, and many other quantum chemistry programs. Files can be transferred directly from several databases, including RCSB, EDS, NCI, PubChem, and MaterialsProject. Multiple files can be loaded and compared. A rich scripting language and a well-developed web API allow easy customization of the user interface. Features include interactive animation and linear morphing. Jmol interfaces well with JSpecView for spectroscopy, JSME for 2D->3D conversion, POV-Ray for images, and CAD programs for 3D printing (VRML export).
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    Downloads: 3,666 This Week
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  • 2
    Avogadro

    Avogadro

    An intuitive molecular editor and visualization tool

    Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science and related areas. It offers a flexible rendering framework and a powerful plugin architecture.
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    Downloads: 763 This Week
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  • 3
    Open Babel
    Open Babel is a chemical toolbox designed to speak the many languages of chemical data. It's an open, collaborative project allowing anyone to search, convert, analyze, or store data from molecular modeling, chemistry, biochemistry, or related areas
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    Downloads: 535 This Week
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  • 4
    DWSIM - Open Source Process Simulator

    DWSIM - Open Source Process Simulator

    Simulate chemical processes using advanced thermodynamic models

    DWSIM is an open source, CAPE-OPEN compliant chemical process simulator for Windows, Linux and macOS systems. Written in VB.NET and C#, DWSIM features a comprehensive set of unit operations, advanced thermodynamic models, support for reacting systems, petroleum characterization tools and a fully-featured graphical interface. DWSIM Pro is a commercial sibling of DWSIM built on top of open-source software. It offers extended features, comes with private support, and is accessible in the cloud. Visit simulate365.com for details.
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    Downloads: 1,705 This Week
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  • 5
    PyMca
    Stand-alone application and Python tools for interactive and/or batch processing analysis of X-Ray Fluorescence Spectra. Graphical user interface (GUI) and batch processing capabilities provided.
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    Downloads: 205 This Week
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  • 6
    KherveFitting

    KherveFitting

    Fit X-ray Photoelectron Spectroscopy (XPS) and XAS data

    KherveFitting is a full featured XPS, XAS and Raman fitting software for Windows & macOS that is simple and easy to use. KherveFitting can open Excel files (.xlsx) or import/convert .vms, .avg, .kal, .spe (Thermo, Kratos, Specs, Scienta, Omicron, Phi) files into Excel format. 5 background types available: Tougaard, Shirley, Smart, Adaptive Smart. Various peak fitting models: Product and Sum of Gaussian and Lorentzian (GL & SGL), Voigt, Asymmetric Lorentzian (LA), Doniac-Sunjic (G*DS) and many more . Fit single peaks or doublets. Doublet splitting and RSF values are stored in a library file. Several intensity calibration available:TPP-2M, Scoffield, Wagner. Atomic concentration acurately calculated and matching with Thermo Avantage software. YouTube Channel: https://www.youtube.com/@xpsexamples-imperialcolleg6571
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    Downloads: 186 This Week
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  • 7
    Toxtree: Toxic Hazard Estimation

    Toxtree: Toxic Hazard Estimation

    Toxicity prediction for chemical compounds

    A GUI application which estimates toxic hazard of chemical compounds. The latest version includes the following toxicity prediction modules: -Cramer rules (oral toxicity) -Toxicity mode of action via Verhaar scheme -Skin irritation and Eye irritation prediction -Benigni / Bossa rulebase for mutagenicity and carcinogenicity prediction -START biodegradation and persistence prediction -Skin sensitisation reactivity domain -Kroes TTC Decision tree -SMARTCyp - Cytochrome P450-Mediated Drug Metabolism and metabolites prediction -Structure Alerts for the in vivo micronucleus assay in rodents (ISSMIC) -Structural Alerts for Functional Group Identification (ISSFUNC) -Structural alerts associated with covalent protein binding and DNA binding. - Ames mutagenicity Toxtree provides a plugin framework to incorporate different approaches to the estimation. Platform independent (written in Java), with the use of The Chemistry Development Kit.
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    Downloads: 179 This Week
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  • 8
    Gabedit is a Graphical User Interface for FireFly (PC-Gamess), Gamess-US, Gaussian, Molcas, Molpro, MPQC, NWChem, OpenMopac, Orca, PSI4 and Q-Chem computational chemistry packages.
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    Downloads: 97 This Week
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  • 9
    ChemCrow

    ChemCrow

    Chemcrow

    ChemCrow is an AI-powered framework designed to assist in chemical research and discovery. It integrates AI models with chemical knowledge bases to provide intelligent recommendations for synthesis planning, reaction prediction, and material discovery. This tool helps automate and accelerate research in computational chemistry and drug development.
    Downloads: 12 This Week
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  • 10
    OSRA is a utility designed to convert graphical representations of chemical structures and reactions, as they appear in journal articles, patent documents, textbooks, trade magazines etc., into SMILES or SD file format- a computer recognizable molecular structure You can find links to the binary executables here: https://sourceforge.net/p/osra/wiki/Download/
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    Downloads: 62 This Week
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  • 11
    nmrshiftdb2
    nmrshiftdb2 is a NMR database (web database) for organic structures and their nuclear magnetic resonance (nmr) spectra. It allows for spectrum prediction (13C, 1H and other nuclei) as well as for searching spectra, structures and other properties. The nmrshiftdb2 software is open source, the data is published under an open content license. The core of nmrshitdb2 are fully assigned spectra with raw data and peak lists (we have pure peak lists as well). Those datasets are peer reviewed by a board of reviewers. The project is supported by a scientific advisory board. nmrshiftdb2 is part of the NFDI4Chem initiative (https://nfdi4chem.de/) and will provide a component for a curated repository there. Please consult the documentation for more detailed information.
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    Downloads: 111 This Week
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  • 12
    GenX

    GenX

    X-Ray and Neutron Reflectivity Modeling

    GenX is a scientific program to refine x-ray refelcetivity, neutron reflectivity and surface x-ray diffraction data using the differential evolution algorithm. GenX is very modular and highly extensible and can be used as a general fitting program.
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    Downloads: 89 This Week
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  • 13

    XDrawChem

    XDrawChem is an application for chemistry drawing and analysis.

    XDrawChem is an application for drawing and analyzing chemical structures and reactions. Please visit the website for full details. Download source and binary releases here, and clone the source from GitHub at the external link above.
    Downloads: 49 This Week
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  • 14
    luscus

    luscus

    molecular editor and viewer

    Luscus is the program for graphical display and editing of molecular systems. The program allows fast and easy building and/or editing different molecular structures, up to several thousands of atoms large. Luscus can also visualize dipole moments, normal modes, molecular orbitals, electron densities and electrostatic potentials. In addition, simple geometrical objects can be rendered in order to point out a geometrical feature or a physical quantity. The program is developed as a graphical interface for MOLCAS program package, however it's adaptive nature makes possible using luscus with other computational program packages and chemical formats. If you use this program, please cite: G. Kovačević, V. Veryazov, J. Cheminformatics, 7 (2015) 1-10; DOI: 10.1186/s13321-015-0060-z
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    Downloads: 68 This Week
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  • 15
    ShelXle

    ShelXle

    ShelXle is a Qt GUI for SHELXL

    ShelXle combines an editor with syntax highlighting for the SHELXL-associated .ins (input) and .res (output) files with an interactive graphical display for visualization of a three-dimensional structure including the electron density (Fo) and difference density (Fo-Fc) maps. See J. Appl. Cryst. (2011). 44, 1281–1284. for details.
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    Downloads: 33 This Week
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  • 16
    Hydrogen Bond Analysis Tool (HBAT)

    Hydrogen Bond Analysis Tool (HBAT)

    HBAT 2 is migrated from PERL to Python.

    HBAT(Hydrogen Bond Analysis Tool) is a tool to automate the analysis of hydrogen bonds present in a PDB Structure file. HBAT 2 is migrated from PERL to Python. Latest Documentation: https://hbat.abhishek-tiwari.com/ Web Server Version: http://hbat-web.abhishek-tiwari.com Latest Github Release: http://github.com/abhishektiwari/hbat Citation: Tiwari, A., & Panigrahi, S. K. (2007). HBAT: A Complete Package for Analysing Strong and Weak Hydrogen Bonds in Macromolecular Crystal Structures. In Silico Biology, 7(6). https://doi.org/10.3233/ISI-2007-00337
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    Downloads: 21 This Week
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  • 17
    MoCalc2012

    MoCalc2012

    GUI for MOPAC, DFTB+, GAMESS, Firefly, NWChem, ORCA and PSI4

    MoCalc2012 is a simple, efficient Graphical User Interface for MOPAC, DFTB+, GAMESS(US), Firefly, NWChem, ORCA and PSI4.
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    Downloads: 13 This Week
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  • 18
    Downloads: 34 This Week
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  • 19
    The Chemistry Development Kit
    The Chemistry Development Kit (CDK) is a scientific, LGPL-ed library for bio- and cheminformatics and computational chemistry written in Java. The main home page of the CDK is now at: http://cdk.github.io
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    Downloads: 34 This Week
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  • 20

    open enventory

    Electronic Laboratory Notebook, chemical inventory & more

    Web-based Electronic Laboratory Notebook (ELN) with integrated Chemical Inventory by the group of Prof. Goossen (then TU Kaiserslautern, Germany), based on PHP 8+/MariaDB. Allows (sub-)structure search, reaction planning, management of spectra and literature.
    Downloads: 20 This Week
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  • 21
    Molsketch

    Molsketch

    2D molecule editor

    Molsketch is a 2D molecular editing tool. Its goal is to help you draw molecules quick and easily. Of course you're creation can be exported afterwards in high quality in a number of vector and bitmap formats.
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    Downloads: 18 This Week
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  • 22
    GNNPCSAFT

    GNNPCSAFT

    Smart Thermodynamic Modeling with Graph Neural Networks

    The GNNPCSAFT app is an implementation of our project that focuses on using Graph Neural Networks (GNN) to estimate the pure-component parameters of the Equation of State PC-SAFT. We developed this app so the scientific community can access the model's results easily. In this app, the estimated pure-component parameters can be used to calculate thermodynamic properties and compare them with experimental data from the ThermoML Archive. To install the GNNPCSAFT app, download the appropriate latest release from the Files. More info on github repository.
    Downloads: 29 This Week
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  • 23
    FreeLIMS  |  Free LIMS

    FreeLIMS | Free LIMS

    Laboratory Information Management System

    FreeLIMS is a Laboratory Information Management System ( LIMS ). Manage samples; create sample types from methods & parameters; easily generate reports & certificates; fine tune user rights. FreeLIMS is Open Source and Free.
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    Downloads: 28 This Week
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  • 24
    The Sashimi project hosts the Trans-Proteomic Pipeline (TPP), a mature suite of tools for mass-spec (MS, MS/MS) based proteomics: statistical validation, quantitation, visualization, and converters from raw MS data to the open mzML/mzXML formats.
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    Downloads: 28 This Week
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  • 25
    Motofit co-refines Neutron and X-ray reflectometry data, using the Abeles matrix / Parratt recursion and least squares fitting (Genetic algorithm or Levenberg Marquardt). It works in the IGOR Pro environment (TM Wavemetrics).
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    Downloads: 15 This Week
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