Browse free open source Chemistry software and projects 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: 678 This Week
    Last Update:
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  • 2
    JSmol

    JSmol

    JavaScript-Based Molecular Viewer From Jmol

    JSmol is the extension of the Java-based molecular visualization applet Jmol (jmol.sourceforge.net) as an HTML5 JavaScript-only web app. It can be used in conjunction with the Java applet to provide an alternative to Java when the platform does not support that (iPhone/iPad) or does not support applets (Android). Used in conjunction with the Jmol JavaScript Object (http://wiki.jmol.org/index.php/Jmol_Javascript_Object), JSmol seamlessly offers alternatives to Java on these non-Applet platforms. JSmol can read all the files that Jmol reads. You can do all the scripting that Jmol does. You can create all the buttons and links and such that you are used to creating for Jmol. All of the rendering capability of the Jmol applet is there. JSmol has both a console and a popup menu. JSmol is integrated fully with JSME and JSpecView. A "lite" version of JSmol provides minimal functionality (balls and sticks only) for extremely small-bandwith apps. Released 1/12/2013
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    Downloads: 34 This Week
    Last Update:
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  • 3
    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: 16 This Week
    Last Update:
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  • 4
    CVSim

    CVSim

    Cyclic Voltammetry Simulation Program for Research and Education

    This a cyclic voltammetry (CV) program created for teaching CV undergraduate chemistry students. For research, download the version from https://sourceforge.net/projects/cvsimplus/ . CVSim uses the implicit method to simulate diffusion. Development of new methods for more accurate simulation of the diffusion is under way. For more details and discussion contact me at akeramid@ucy.ac.cy.
    Downloads: 7 This Week
    Last Update:
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  • 5
    JOELib/JOELib2 is a cheminformatics library which supports SMARTS substructure search, descriptor calculation, processing/filtering pipes, conversion of file formats, 100% pure Java, and interfaces to external programs (e.g. Ghemical) are available.
    Downloads: 6 This Week
    Last Update:
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  • 6
    CVSimPlus

    CVSimPlus

    Cyclic Voltammetry Simulation Program for Research

    This a cyclic voltammetry (CV) program created for teaching CV undergraduate chemistry students and research. It can be downloaded and from https://sites.google.com/site/keramidasscientificsoftware/cvsim. CVSim uses either implicit or RK4 methods to simulate diffusion. Development of new methods to accurate simulate the diffusion is under way. A lot of time has been invested and will be on making the simulation of CV as more accurate as possible. The results at the moment for CV are satisfactory however can be improved. For more details and discussion contact me at akeramid@ucy.ac.cy.
    Downloads: 5 This Week
    Last Update:
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  • 7
    Object-oriented crystallographic library and program, for the analysis of Crystal structures from scattering experiments: optimized scattering computation, Graphical interface for structures and data, global optimization algorithms.
    Downloads: 5 This Week
    Last Update:
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  • 8
    MultiSpecUVVis

    MultiSpecUVVis

    Multi-spectra handling and presentation

    Read and handle (Baseline correction, Peakpeaking, Integration, Line fitting) multiple UV-Vis, IR, RAMAN spectra. The project can open .SPE PRINCETON type format and various txt formats however this will be updated in the future. You can make very nice figures 2D and 3D ready for publication.
    Downloads: 2 This Week
    Last Update:
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  • 9
    Periodic Table of Elements
    PTable is a lightweight and easy to use application hat aims to bring you more information about the chemical elements which are represented in the periodic table. Besides the colored grouping, PTable is able to display details about any element you click onto. Thus, you can view the atomic number, symbol, common name, atomic weight, density, state and much more.
    Downloads: 2 This Week
    Last Update:
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  • 10
    MesoRD is a stochastic and deterministic simulator of coupled chemical reactions and diffusions in space.
    Downloads: 1 This Week
    Last Update:
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  • 11
    ProtoMol is an object-oriented component based framework for molecular dynamics simulations.
    Downloads: 1 This Week
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  • 12
    The Acids and Bases chapters' (14 and 15) calculations are arguably the hardest calculations in all of AP Chemistry. With some problems taking as long as ten minutes to solve, the can be hard to wrap the mind around. However, with the Acids and Bases Program, a quick answer is never more than a click away.
    Downloads: 1 This Week
    Last Update:
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  • 13

    Chemistry Helper

    A simple easy to use chemistry helper!

    This application is intended to help students with the basics of chemistry. It can solve basic gas laws equations, and find the molar mass of a compound or element. These tasks allow students to cut the repetition out of basic chemistry.
    Downloads: 1 This Week
    Last Update:
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  • 14

    Computing with units

    Calculator that takes care of measurement units.

    Java program for computations with values expressed in terms of physical or other units. Supports complicated mathematical expressions and user-defined functions. Invoked from scripts, line command, or as GUI. Extensive units data base.
    Downloads: 1 This Week
    Last Update:
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  • 15
    EnergyUnitConverter

    EnergyUnitConverter

    Energy Unit converter program a useful tool for chemists

    This a monogame visual c# tool for chemists. Monogame was used because the need for the development of multiplatform applications
    Downloads: 1 This Week
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  • 16
    FABS

    FABS

    Fluorescence and absorption spectroscopy made easy

    FABS is a program designed to run a fluorescence/absorption spectrometer on Windows. The program analyzes spectra and provides graphs and data files. Users may choose to input video files from cell phones or other cameras, still images, or even live streams of video from webcams. FABS can perform any necessary calibration and image preprocessing. Experienced users have a number of more advanced options such as background subtraction, adjustments for nonlinearities in detector response, and graph smoothing. FABS was designed with students in mind, as a way to help high schoolers and undergraduates learn about spectroscopy without paying for expensive equipment and software. Accompanying this software is a hardware design, which can be used as a bare-bones spectrometer that will provide quantitative absorption and fluorescence emission spectra at an extremely low cost. It uses only materials that many people can find around their home.
    Downloads: 1 This Week
    Last Update:
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  • 17
    Periodic Table of Elements

    Periodic Table of Elements

    Periodic Table of Elements a quick reference tool

    Periodic Table of Elements is a quick reference tool that allows you a quick glance to get general information about an element. The program is for educational purposes.
    Downloads: 1 This Week
    Last Update:
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  • 18
    GenChemLab is an OpenGL-based application intended to simulate several common general chemistry laboratory exercises.
    Downloads: 1 This Week
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  • 19
    The Developement of 3D Molecular Simulation Engine
    Downloads: 0 This Week
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  • 20
    AtomDesigner
    3D modeling of chemical elements atoms
    Downloads: 0 This Week
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  • 21
    CHIMP aims to provide a complete suite of tools for the investigation and modeling of chemical systems. It currently is able to parse chemical reaction mechanisms and run kinetic Monte Carlo simulations on the reacting system.
    Downloads: 0 This Week
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  • 22
    ChemHelper is aimed at high school students and anybody that does not have a good understanding of chemistry. The objective is to have a program that can teach the basics of chemistry, by having interactive tutorials.
    Downloads: 0 This Week
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  • 23
    ChemLearing is a lightweight, easy to use e-learning platform - for both the student as well as the teacher.
    Downloads: 0 This Week
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  • 24
    ChemProV is a tool used by chemical engineering students to solve material balance problems. The project is maintained by Washington State University. For more information on how to install ChemProV, please visit the project's website.
    Downloads: 0 This Week
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  • 25
    Chemical Reaction

    Chemical Reaction

    Balance chemical reaction and compute material balance

    This Python program is used to balance a chemical reaction and to compute the material balance. Furthermore, it's able to check molecules and to write the condensed strutural formula from the name of an organic molecule. (Those both functionalities are still limited.)
    Downloads: 0 This Week
    Last Update:
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