Best Free Optical Design Software of 2025

3DOptix, a cloud-based platform for optical design and simulation, allows users to efficiently design, simulate and refine optical systems. It offers rapid analysis capabilities using cloud and GPU acceleration without the need for any local installations. The platform offers an extensive library of optical and optomechanical components that are available off-the-shelf, allowing for the creation of accurate digital prototypes. The 3D graphical user interface is intuitive and features drag-and drop functionality, real-time visualisation and simplifies the design process. 3DOptix allows for both sequential and nonsequential ray-tracing. This allows for comprehensive modeling of optical systems. It also offers real-time collaborative tools that allow multiple users to work simultaneously on the same project, with easy sharing through cloud links. The platform can be accessed via any web-browser, eliminating the need to install specific hardware or software.

Ansys Zemax OpticStudio, a comprehensive optical design tool, is used by companies and universities around the world to create and analyze optical system, including illumination, imaging, and laser systems. It has a user-friendly, integrated interface that integrates optimization, analysis, and tolerancing, making it easy to design complex optical systems. The software allows for both sequential and nonsequential ray-tracing to accurately model light propagation in various optical components. Users can assess the impact environmental factors have on optical performance using advanced features such as structural and thermal analyses. OpticStudio provides extensive libraries of optical elements and materials, which enhances the accuracy of simulations. Ansys offers students a free version OpticStudio that allows them to design and analyze optical systems. This will prepare them for careers in optics.