Browse free open source C++ Physics Software and projects below. Use the toggles on the left to filter open source C++ Physics Software by OS, license, language, programming language, and project status.

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  • 1
    GMAT

    GMAT

    General Mission Analysis Tool

    The General Mission Analysis Tool (GMAT) is an open-source tool for space mission design and navigation. GMAT is developed by a team of NASA, private industry, and public and private contributors. The GMAT development team is pleased to announce the release of GMAT version R2026a. For a complete list of new features, compatibility changes, and bug fixes, see the R2026a Release Notes in the Users Guide.
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    Downloads: 2,047 This Week
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  • 2
    Asymptote

    Asymptote

    2D & 3D TeX-Aware Vector Graphics Language

    Asymptote is a powerful descriptive vector graphics language for technical drawing, inspired by MetaPost but with an improved C++-like syntax. Asymptote provides for figures the same high-quality typesetting that LaTeX does for scientific text.
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    Downloads: 226 This Week
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  • 3
    PreviSat

    PreviSat

    Satellite tracking software

    PreviSat is a satellite tracking software for observing purposes. Very easy to use, it shows positions of artificial satellites in real-time or manual mode. PreviSat is able to make predictions of their passes, predictions of MetOp and COSMO-SkyMed flares, transits of all satellites, predictions of Starlink satellites passes and several other calculations.
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    Downloads: 188 This Week
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  • 4
    ToxTrac 2026

    ToxTrac 2026

    Free Animal Tracking Software

    ToxTrac is a free Windows program optimized for tracking animals. It uses an advanced tracking algorithm and includes Preprocessing, Background subtraction, Advanced collision and occlusion management, Post-processing, and Filters. It is robust; very fast; and can handle one or several animals in one or several environments. The program provides useful statistics as output. ToxTrac can be used for fish, insects, rodents, etc. If used, please cite: Rodriguez, A., Molares-Ulloa, A., Andersson, M., and Brodin, T. (2026). ToxTrac 2026 (1.4). Universidade da Coruña. https://doi.org/10.5281/zenodo.20393895. Rodriguez, A., Zhang, H., Klaminder, J., Brodin, T., Andersson, P. L. and Andersson, M. (2018). ToxTrac: a fast and robust software for tracking organisms. Methods in Ecology and Evolution. 9(3):460-464. https://doi.org/10.1111/2041-210X.12874. Contact and Support: Alvaro Rodriguez (Main Developer), a.tajes@udc.es Magnus Andersson, magnus.andersson@umu.se
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    Downloads: 190 This Week
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    NumeRe

    NumeRe

    Framework for numerical computations, data analysis and visualisation

    Curve fitting | Data analysis | Plotting | Matrix operations | FFT | Extensible framework | Multiple file formats | Programmable | Open source | Free for everyone NumeRe: Framework for Numerical Computation is a numerical framework written for Microsoft Windows(R) and released under the GNU GPL v3 for solving and visualizing mathematical and physical problems numerically. Keep simple things simple: You want to plot a sine function? Just enter 'plot sin(x)'. You want to load some data? Enter 'load "path/to/your/file"' or drag the file into the terminal. You need to fit a function to the data? Enter 'fit data() -with=YOURFUNCTION(x)' Need assistance? Enter 'help topic' into the terminal or simply press [F1]. Find us on Discord: https://discord.gg/s5tSjwU Follow us on Mastodon: https://fosstodon.org/@numeredevs Visit our page: https://www.numere.org Buy us a coffee: https://ko-fi.com/numere We've moved to GitHub: https://github.com/numere-org
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    Downloads: 143 This Week
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  • 6
    GaussianBeam computes the profile propagation of a Gaussian laser beam through a set of lenses.
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    Downloads: 52 This Week
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  • 7
    The DigitalSimulator is your Virtual Electronics Lab, allowing you to design, simulate and output your digital circuit board designs.
    Downloads: 53 This Week
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  • 8
    GridLAB-D
    GridLAB-D is a new power system simulation tool that provides valuable information to users who design and operate electric power transmission and distribution systems, and to utilities that wish to take advantage of the latest smart grid technology. It incorporates advanced modeling techniques with high-performance algorithms to deliver the latest in end-use load modeling technology integrated with three-phase unbalanced power flow, and retail market systems. Historically, the inability to effectively model and evaluate smart grid technologies has been a barrier to adoption; GridLAB-D is designed to address this problem. User documentation can be found at: http://gridlab-d.shoutwiki.com/wiki/Quick_links The source code is available from GitHub. See https://github.com/gridlab-d/gridlab-d. Issue tracking is handled by GitHub. See https://github.com/gridlab-d/gridlab-d/issues.
    Downloads: 25 This Week
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  • 9
    gVirtualXRay

    gVirtualXRay

    Virtual X-Ray Imaging Library on GPU

    gVirtualXRay is a C++ library to simulate X-ray imaging. It is based on the Beer-Lambert law to compute the absorption of light (i.e. photons) by 3D objects (here polygon meshes). It is implemented on the graphics processing unit (GPU) using the OpenGL Shading Language (GLSL). SimpleGVXR is a smaller library build on the top of gVirtualXRay. It provides wrappers to Python, R, Ruby, Tcl, C#, Java, and GNU Octave.
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    Downloads: 11 This Week
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  • 10
    Acoustic Research Tool (ART)

    Acoustic Research Tool (ART)

    Acoustic Simulation Library for Frequency and Time Domain Simulations.

    ART is a flexible simulation framework for wind instruments. It includes a growing library of modelling elements. So far bore discontinuities, branches, tone holes, cylindrical and conical tubes, Bessel horns and bent tubes are available for frequency domain modelling. In the time domain generic bidirectional propagation elements, scattering elements, fractional delays, convolution with reflection functions and general z-domain networks are available and can be described using MuParserX expressions. Cylindrical and conical ducts can also be defined based on their geometry. Available models and their parameters can be enumerated and combined to form simulators for complex acoustical structures. Parameters can be specified symbolically by expressions containing other parameter values or global variables. Dependencies between parameters are resolved at run time. However, MuParserX expressions are compiled at design time. Zero-delay loops are detected and reported.
    Downloads: 37 This Week
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  • 11
    CvMob
    CvMob is an Open Source tool to automatic visual analysis of human movement. The software calculates the optical flow to generate data about trajectory, velocity and acceleration using low-quality videos. For more informations, please visit our website: http://www.cvmob.ufba.br/
    Downloads: 34 This Week
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  • 12
    CAMPARI

    CAMPARI

    Software for molecular simulations and trajectory analysis

    We are proud to introduce version 5 of CAMPARI. We have added a number of new features, most notably a Python interface for interpreting user-supplied code (with the help of ForPy), a novel trajectory storage standard (with the help of libpqxx/PostgreSQL), and a module for performing transition path theory. Naturally, CAMPARI continues to provide the reference implementation of the ABSINTH force field paradigm and implicit solvation model. CAMPARI is a joint package for performing and analyzing molecular simulations, in particular of systems of biological relevance. It focuses on a wide availability of algorithms for (advanced) sampling and is capable of combining Monte Carlo and molecular dynamics in seamless fashion. CAMPARI offers the user a very high level of control over all implemented features. For more information and features, please refer to the project's homepage at http://campari.sourceforge.net/V5
    Downloads: 8 This Week
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  • 13
    water_hammer_simulation

    water_hammer_simulation

    A Qt application for water hammer simulation.

    With differents numerical methods this application simulate the water hammer phenomenon.
    Downloads: 16 This Week
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  • 14
    A multi-procedure, multi platform electron spectrum evaluation program, with special options for atomic physics and XPS/UPS spectroscopy.
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    Downloads: 8 This Week
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  • 15
    GLUI is a GLUT-based C++ user interface library which provides controls such as buttons, checkboxes, radio buttons, and spinners to OpenGL applications. It is window-system independent, using GLUT or FreeGLUT.
    Downloads: 3 This Week
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  • 16
    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: 13 This Week
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  • 17
    OpenSim - Open Simulator. Primarily a 3D simulator for multiple indoor and outdoor mobile robots. Includes 3D real-time rendering (via OSG) and a physics engine (via ODE). Current emphasis is on manipulators.
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    Downloads: 9 This Week
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  • 18
    freesteam
    Open source steam property routines in C. Implements the IAPWS-IF97 steam tables from the International Association for the Properties of Water and Steam. Includes two-way property solvers and test suite. Can be used from C/C++, Fortran, Python, LabVIEW, Octave and ASCEND.
    Downloads: 9 This Week
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  • 19
    QCS is a quantum computer simulation written by Philipp Jungmann, Torsten Mandel and Maximilian Plenert as a software project under Dr. Michael Winckler (IWR) and Dr. Jian-Wei Pan (PI), University of Heidelberg.
    Downloads: 7 This Week
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  • 20
    Nuclei

    Nuclei

    Feature rich GUI for nuclear decay schemes

    Nuclei is a software tool for the displaying of nuclear decay schemes and estimated energy spectra, the calculation of angular γ emission anisotropies, and the automated search for appropriate decay cascade properties. It uses the Evaluated Nuclear Structure Data Files (ENSDF). A description of Nuclei's functionality and results obtained using its search method was published in Nuclear Instruments and Methods in Physics Research, Section A: M. Nagl, et al., NIM A 726 (2013), 17-30 [doi:10.1016/j.nima.2013.05.045] ------------------------- © 2012-2013, Matthias Nagl, II. Physikalisches Institut, Georg-August-Universität Göttingen http://physik2.uni-goettingen.de/research/2_hofs -------------------------
    Downloads: 6 This Week
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  • 21
    XMDS

    XMDS

    Fast integrator of stochastic partial differential equations

    XMDS is a code generator that integrates equations. You write them down in human readable form in a XML file, and it goes away and writes and compiles a C++ program that integrates those equations as fast as it can possibly be done in your architecture.
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    Downloads: 6 This Week
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  • 22
    GXSM

    GXSM

    Scanning Probe Microscopy Controller and Data Visualization Software

    GXSM -- Gnome X Scanning Microscopy: A multi-channel image and vector-probe data acquisition and visualization system designed for SPM techniques (STM,AFM..), but also SPA-LEED/LEED/LEEM data analysis. A plug-in interface allows any user add-on data-processing and special hardware and instrument support. Latest: NC-AFM and related explorative methods as SQDM can be configured. High-Speed external PAC-PLL hardware option with digital DSP link. Based on several hardware options it supports a commercially available DSP hardware and provided also Open Source Code for all the low level signal processing tasks and instrument controls in a most flexible and adaptable manner. All latest software is available via github.com/pyzahl/Gxsm4 (source code) or as binary for Ubuntu on https://launchpad.net/~totto/+archive/ubuntu/gxsm
    Downloads: 2 This Week
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  • 23
    QVM is a quaternion, vector, and matrix class set in C++ for 3D kinematics.
    Downloads: 5 This Week
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