Software Alternatives, Accelerators & Startups

Calculix VS COMSOL Multiphysics

Compare Calculix VS COMSOL Multiphysics and see what are their differences

Calculix logo Calculix

Calculix is a free and open-source finite-element analysis application that uses an input format...

COMSOL Multiphysics logo COMSOL Multiphysics

COMSOL is the developer of COMSOL Multiphysics software, an interactive environment for modeling and simulating scientific and engineering problems.
  • Calculix Landing page
    Landing page //
    2022-10-23
  • COMSOL Multiphysics Landing page
    Landing page //
    2023-08-17

Calculix features and specs

  • Open Source
    CalculiX is open-source software, meaning it is free to use and can be customized to meet specific user needs. Users can access and modify the source code, promoting transparency and flexibility.
  • Extensive Documentation
    The software comes with comprehensive manuals and user guides, which can be helpful for beginners to apply the software effectively and understand its various features.
  • High Compatibility
    CalculiX is compatible with several operating systems and integrates well with other open-source tools, offering versatility in different computing environments.
  • Robust Solving Capabilities
    It offers powerful finite element analysis (FEA) capabilities, including thermal, static, and dynamic analyses, which can handle complex structural problems efficiently.
  • Active Community Support
    There is an active online community and forums where users can share experiences, seek help, and collaborate on improvements to the software.

Possible disadvantages of Calculix

  • Steep Learning Curve
    For users without a background in finite element analysis or software programming, the learning curve can be quite steep, as the interface is less intuitive compared to commercial FEA tools.
  • Limited Graphical User Interface (GUI)
    CalculiX lacks a full-featured GUI, which may require users to rely on command-line inputs or additional third-party software for pre- and post-processing tasks.
  • Resource Intensive
    The software can be resource-intensive, requiring significant computational resources for large-scale simulations, which might limit usage on less powerful hardware.
  • Limited Marketing and Awareness
    Being open-source, the project lacks the marketing and visibility of commercial counterparts, which may result in less documentation for niche applications or newer updates.
  • Complex Installation Process
    The installation procedure can be complicated, especially for users who are not familiar with compiling software from source, posing a barrier to entry for some potential users.

COMSOL Multiphysics features and specs

  • Versatile Multiphysics Capabilities
    COMSOL Multiphysics allows users to couple multiple physical phenomena within a single environment, making it easier to simulate complex interactions and multiple-physics problems simultaneously.
  • User-Friendly Interface
    The graphical user interface of COMSOL is designed to be intuitive, helping users to build models quickly with drag-and-drop features and wizards for setting up simulations.
  • Extensive Material Library
    COMSOL Multiphysics includes a comprehensive library of predefined materials, making it simpler for users to define properties and characteristics in simulations.
  • Integration with Third-Party Software
    COMSOL provides compatibility with other software through APIs, enabling integration with MATLAB, CAD tools, and other engineering software for extended functionality.
  • Strong Community and Support
    The software has a vibrant user community and extensive support mechanisms, including detailed documentation, forums, and customer support, which provide valuable resources for troubleshooting and learning.

Possible disadvantages of COMSOL Multiphysics

  • High Cost
    The licensing fees for COMSOL Multiphysics can be significant, which may be a barrier for smaller companies, startups, and educational institutions with limited budgets.
  • Steep Learning Curve
    Despite its user-friendly interface, the depth and breadth of capabilities in COMSOL can present a steep learning curve for new users, demanding a considerable investment of time to become proficient.
  • Resource-Intensive Requirements
    Running simulations on COMSOL can be resource-intensive, requiring robust computational hardware, which may not be accessible to all users.
  • Limited MacOS Support
    While COMSOL is primarily available for Windows and Linux, its support and performance on MacOS can be limited, potentially restricting its usability for Mac users.
  • Complex Licensing System
    The software's licensing system can be complex and sometimes inconvenient, involving multiple types of licenses (network, single-user, etc.) which can complicate deployment and user management.

Calculix videos

Mecway / Calculix - simple check and review results

More videos:

  • Review - CalculiX - Swivel Tie Down Ring (w plastic)

COMSOL Multiphysics videos

How to Add Physics to a Model in COMSOL Multiphysics®

More videos:

  • Tutorial - How to Create Surface, Volume, and Line Plots in COMSOL Multiphysics®

Category Popularity

0-100% (relative to Calculix and COMSOL Multiphysics)
Numerical Computation
13 13%
87% 87
Technical Computing
14 14%
86% 86
CFD
21 21%
79% 79
Computational Fluid Dynamics

User comments

Share your experience with using Calculix and COMSOL Multiphysics. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, Calculix seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Calculix mentions (1)

  • What is the model used for nonlinear material in Freecad?
    Under the hood CalculiX is used for this. It appears the FreeCAD nonlinear material object does use a plastic model from CalculiX. Here are two forum threads I found discussing the matter:. Source: over 4 years ago

COMSOL Multiphysics mentions (0)

We have not tracked any mentions of COMSOL Multiphysics yet. Tracking of COMSOL Multiphysics recommendations started around Mar 2021.

What are some alternatives?

When comparing Calculix and COMSOL Multiphysics, you can also consider the following products

elmer - Elmer is an open-source software package that solves partial differential equations. Combined with its ability to run various equations in parallel, it is an effective tool for running multiphysical simulations. Read more about elmer.

MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming

OpenFOAM - OpenFOAM® - Official home of The Open Source Computational Fluid Dynamics (CFD) Toolbox.

ANSYS Fluent - ANSYS engineering simulation and 3D design software delivers product modeling solutions with unmatched scalability and a comprehensive multiphysics foundation.

Code_Aster for Windows - Code_Aster is a free software for numerical simulation in structural mechanics.

Code_Saturne - Code_Saturne solves the Navier-Stokes equations for 2D, 2D-axisymmetric and 3D flows, steady or...