If you're a designer, engineer, or hobbyist who works with 3D printing or CAD software on OSX, you know the importance of having a reliable and efficient STL viewer. With the growing popularity of 3D printing and the increasing use of CAD software, having the right tool to view and manipulate STL files is essential. In this article, we'll explore some of the best STL viewer options for OSX, so you can find the perfect tool for your needs. One of the top choices for STL viewing on OSX is MeshLab. This open-source software offers a wide range of features, including powerful mesh processing capabilities, making it a great choice for designers and engineers. Another popular option is FreeCAD, a free and open-source parametric 3D CAD modeler. It offers support for a wide range of file formats, including STL, and provides advanced visualization tools for viewing and analyzing 3D models. If you're looking for a more lightweight and user-friendly option, take a look at 3D-Tool. This software is designed specifically for viewing and analyzing 3D models, including STL files, and offers a simple and intuitive user interface. Lastly, if you're working with 3D printing, you might want to consider PrusaSlicer. While primarily a slicing software, it also includes a built-in STL viewer, making it a convenient option for users who need to quickly check their 3D models before printing. Whether you're a professional engineer, a hobbyist, or anyone in between, having the right STL viewer for OSX is crucial for your 3D printing and CAD projects. With the options we've covered in this article, you're sure to find the perfect tool to meet your specific needs. Happy designing and happy printing!