--- title: OpenSim Reviews meta\_title: 'OpenSim Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 22 reviews by the users' company size, role or industry to find out how OpenSim works for a business like yours. aggregate\_rating: rating\_value: 4.2 review\_count: 22 scale: '5' date\_modified: '2026-08-07' parent\_category: name: CAD & PLM url: https://www.g2.com/categories/cad-plm --- # OpenSim Reviews & Product Details OpenSim is an open-source software system for biomechanical modeling. * * * Seller [OpenSim Project](https://www.g2.com/sellers/opensim-project) Discussions [OpenSim Community](https://www.g2.com/products/opensim/discuss) Show More ## Value at a Glance Averages based on real user reviews. ### Perceived Cost $$$$$ [ View More Pricing Information ](https://www.g2.com/products/opensim/pricing) ## Top-Rated Alternatives [ ![MATLAB](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "MATLAB") MATLAB 4.5/5(771) ](https://www.g2.com/products/matlab/reviews) [ ![SOLIDWORKS](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "SOLIDWORKS") SOLIDWORKS 4.5/5(646) ](https://www.g2.com/products/solidworks/reviews) [ ![Inventor](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Inventor") Inventor 4.4/5(440) ](https://www.g2.com/products/inventor/reviews) [ View All Alternatives ](https://www.g2.com/products/opensim/competitors/alternatives) ## User Insights Average based on 22 real user reviews. Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ![Verified User in Hospital & Health Care](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospital & Health Care") UH Verified User in Hospital & Health Care Mid-Market (51-1000 emp.) 10/15/2021 "Powerful Application with a Steep Learning Curve" 3.5/5 What do you like best about OpenSim? OpenSim is very capable for complex modeling and ties in well with our 3D motion camera system. Review collected by and hosted on G2.com. What do you dislike about OpenSim? OpenSim interface is a bit clunky and can be challenging to navigate during the learning curve. Once you understand the fundamentals of the process, there are still certain steps in analyzing motion capture data that are hard to find the buttons for. It's definitely a program that requires some 1:1 coaching to learn. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? OpenSim allows our lab team to analyze raw motion capture data and transform it into meaningful anatomical information with joint angles, speed, acceleration, and other parameters. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Dali A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Dali A.") DA Dali A. Engineer II, Operations Integrator Enterprise (\> 1000 emp.) 1/5/2021 "I use OpenSim for musculoskeletal and biomechanical simulations." 4/5 What do you like best about OpenSim? The Program OpenSim is a great tool that is able to be used to teach others about Biomechanics of the body and it is very fun and easy to use! You must have true understanding of the musculoskeletal system in order to have a successful open simulation. This makes it an even greater learning tool to motivate people to learn about the body through a fun and visual process. The software has a good layout and helps me teach others about how the musculoskeletal system operates. It is easy to use and quick to learn and understand. Review collected by and hosted on G2.com. What do you dislike about OpenSim? Sometimes little adjustments can make a huge difference so in the beginning it can take a lot of trial and error. But after you learn the layout, you can quickly create and recreate simulations with ease. I think the most time takes the initial learning and then a lot of tweaking and understanding what effects what Review collected by and hosted on G2.com. Recommendations to others considering OpenSim: Opensim is great for academics, learning, and virtual simulation of the body and mechanics. It is a great way to help teach others about the human body. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? I used the OpenSim Program to solve problems and evaluate different simulations. These simulations included models for biomechanics of the human musculoskeletal system with various movements of the body. I have seen benefits in my own learning of the human body and knowledge of the interconnectivity of musculoskeletal biomechanics. I have also seen benefits for teaching others about the body. It is a great tool to teach others about the body and functions of the muscles and how they affect movement. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Adrian B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Adrian B.") AB Adrian B. Clinical Support Engineer Small-Business (50 or fewer emp.) 1/27/2021 Business partner of the seller or seller's competitor, not included in G2 scores. "Cerebral Palsy Gait Correction" 4/5 What do you like best about OpenSim? It was helpful to be able to run two different gait cycles at once to compare defects in muscle activation. The coded models on SimTK were certainly helpful because it allows you to apply already coded models for your specific experiment. Review collected by and hosted on G2.com. What do you dislike about OpenSim? I wish there was more help available when downloading and applying coded models. I had issues when downloading some of the models. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? I used OpenSim with my senior design project where my team and I were developing a lower extremity exoskeleton to correct the gait of Cerebral Palsy patients. It was very helpful during the research phase of the project because I was able to get force values and physically see the muscles used in normal gait and compare them to the force values for a person with different classes of Cerebral Palsy. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Kathan S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Kathan S.") KS Kathan S. Small-Business (50 or fewer emp.) 12/9/2020 "Detailed and useful software with cumbersome UI" 3.5/5 What do you like best about OpenSim? The degree to which the software can simulate and gather data regarding different muscles in the body and the ability of the software to simulate very complex real-life situations to gather data is impressive. Alos the tutorial provided along with the software are easy to catch up and give a basic gist of operating the software at a novice level. Review collected by and hosted on G2.com. What do you dislike about OpenSim? The software needs to have an extensive library of samples for ease of learning and usage. It is difficult for someone not knowing programming to add customized actuators, models and other important part s needed for a customized simulation. The existing library for the software is too narrow and it is difficult to find instances which are really similar and useful, without extra work. This makes the software difficult and cumbersome to use for people not knowing to program. Review collected by and hosted on G2.com. Recommendations to others considering OpenSim: Learn HTML and other programming languages properly. Learn a little bit of software development to simulate custom scenes and test cases. Also, go through the given tutorials thoroughly and practice them step by step, understanding each step simultaneously to avoid confusion and mistakes at a later stage. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? I am simulating an exoskeleton actuator that I am creating on the software to replace the soleus muscle on the leg. The major benefit of the software is that it avails the benefits of important data regarding muscles and its actuation which helps in designing and simulating exoskeletons which would be otherwise difficult to obtain with such cost-effectiveness. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Mechanical or Industrial Engineering](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Mechanical or Industrial Engineering") UM Verified User in Mechanical or Industrial Engineering Small-Business (50 or fewer emp.) 12/22/2020 "use OpenSim to inform design and control of robots that interact with human" 4/5 What do you like best about OpenSim? open source, large community support, allowing developer to make changes for their applications. Review collected by and hosted on G2.com. What do you dislike about OpenSim? Sometimes bugs occur with no immediate known reasons. It also requires better configuration of a computer hardware as the visual rendering is quite computationally expensive. The interface with Matlab is very useful but sometimes causes unknown crashes of Matlab. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? I use OpenSim to inform design and control of robots that interact with human. It helps me design, for example, a spine exoskeleton in the past where I used OpenSim to figure out the optimal loading onto the human back during sagittal-plane lifting. I have also used it to test evolutionary algorithm to perform forward biomechanical simulations. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Verified User in Biotechnology](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Biotechnology") UB Verified User in Biotechnology Enterprise (\> 1000 emp.) 1/5/2021 "OpenSim review from a researcher with a PhD in Biomechanics and Soft Robotics" 4/5 What do you like best about OpenSim? Opensource musculoskeletal models Easy editing and combining the musculoskeletal models using XML and the scripting Fast static optimization Great view and easy interaction Review collected by and hosted on G2.com. What do you dislike about OpenSim? Difficult to troubleshoot XML models. New tools should be included for this purpose Slow dynamic optimization such as computed muscle control (CMC) Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? Modelling, simulation and analysis of assistive suits for the human body. I use Opensim to assess the assistance capabilities and safe application of the soft suit design using a series of biomechanical models of the designs united with human musculoskeletal models. Review collected by and hosted on G2.com. Show More 1/7/2021 Current UserValidated ReviewerIncentivizedSource: G2 invite ![Cian W.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Cian W.") CW Cian W. Small-Business (50 or fewer emp.) 1/4/2021 "Simple but poweful software for modelling" 4/5 What do you like best about OpenSim? OpenSim is a powerful tool for modeling of bio mechanics in various situations. Provides good insight and tutorials. Easy to use once used to software. Review collected by and hosted on G2.com. What do you dislike about OpenSim? Difficult to find online help. Long learning curve for what is ultimately an easy to use software Review collected by and hosted on G2.com. Recommendations to others considering OpenSim: Try to understand how to use the software (both theoretically and practically) prior to attempting to solve your problem. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? Modelling of the dynamics of a rugby tackle. Insight into the internal loading of the player. Has comparison with inverse dynamics modelling. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Mechanical or Industrial Engineering](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Mechanical or Industrial Engineering") UM Verified User in Mechanical or Industrial Engineering Small-Business (50 or fewer emp.) 12/7/2020 "Great tool for the right application" 4/5 What do you like best about OpenSim? The open source platform and community are the best features. Everyone is willing to help and share ideas and knowledge learned over the years. Review collected by and hosted on G2.com. What do you dislike about OpenSim? There can be a steep learning curve to learn the software if you’ve never used it before and don’t have someone to show you. Also difficult to learn new applications unless you have help from the open source community Review collected by and hosted on G2.com. Recommendations to others considering OpenSim: Learn from someone who has experience! Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? I was studying muscle activation patterns and joint loading during running. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Nithin K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Nithin K.") NK Nithin K. Computer Vision Engineer Small-Business (50 or fewer emp.) 1/8/2021 "A very good simulation tool for forward dynamic optimizations" 3.5/5 What do you like best about OpenSim? The open-source 3D models and the simulation platform, kinematic and kinetic simulations. Also the optimizations tools available. Review collected by and hosted on G2.com. What do you dislike about OpenSim? For developers, the coding part might be challenging if not using the user interface. Review collected by and hosted on G2.com. Recommendations to others considering OpenSim: Nice tool if you are working in biomechanics field. Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? I used openSim to make 3D forward dynamic simulations along with optimizations. Also used to determine muscle activations and related muscle forces. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Raman S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Raman S.") RS Raman S. Data Analyst Enterprise (\> 1000 emp.) 12/8/2020 "OpenSim for biomechanical modelling" 3.5/5 What do you like best about OpenSim? Widely available musculoskeletal model in opensim Review collected by and hosted on G2.com. What do you dislike about OpenSim? Customisation of musculoskeletal model could have been better and proper documentation Review collected by and hosted on G2.com. Recommendations to others considering OpenSim: Please read documentation first and refer some paper before using opensim Review collected by and hosted on G2.com. What problems is OpenSim solving and how is that benefiting you? Modelling of human arm for point to point motion Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ## Questions about OpenSim? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about OpenSim ](https://www.g2.com/products/opensim/discussions/new) ![Dali A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Dali A.") DA Dali Alarian • Last activity over 5 years ago kjkjhkjhj 1 Upvote 1 [ Join the conversation ](https://www.g2.com/discussions/35492-kjkjhkjhj) ![Manideep G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Manideep G.") MG Manideep Gumalapuram • Last activity over 5 years ago Can I use it for developing a new software? 1 Upvote 1 [ Join the conversation ](https://www.g2.com/discussions/34968-can-i-use-it-for-developing-a-new-software) [ View all Discussions ](https://www.g2.com/products/opensim/discuss) ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. [ View More Pricing Information ](https://www.g2.com/products/opensim/pricing) OpenSim Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_d5738f5e7922b4552c3ba543a2b9dee6/matlab.jpeg "Product Avatar Image") MATLAB 4.5/5(771) [ Compare Now ](https://www.g2.com/compare/matlab-vs-opensim) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_8a92e2c305bc2b2784390d729470b9b4/solidworks.png "Product Avatar Image") SOLIDWORKS 4.5/5(646) [ Compare Now ](https://www.g2.com/compare/opensim-vs-solidworks) ##### ##### OpenSim Features Tools Multibody dynamics Work Continuous event modeling Mechanical event simulation Environment Command Clarity [ View More Features ](https://www.g2.com/products/opensim/features) ## Work at OpenSim Project? Claim this profile to respond to reviews, update product info, and reach in-market buyers. 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