If you're a Mac user and work with 3D printing or modeling, you may need to view and edit STL files. While macOS doesn't have native support for STL files, there are several third-party software options that can help you view and modify these 3D models. One of the most popular formats for 3D printing, an STL file contains a 3D model's geometry data. To view and edit these files on Mac, you'll need specialized software. Here are some of the best options for viewing and editing STL files on macOS. MeshLab is a powerful open-source 3D mesh processing software system that is used for editing and processing 3D triangular meshes. With MeshLab, you can view, edit, and clean up STL files, as well as convert them to other formats. Another great option is FreeCAD, an open-source parametric 3D CAD modeler. FreeCAD has a built-in STL file viewer and editor, allowing you to make modifications to 3D models and prepare them for 3D printing. Blender, a popular 3D modeling software, also has built-in support for STL files. With Blender, you can import, edit, and export STL files, making it a versatile option for Mac users. Additionally, Simplify3D is a professional 3D printing software that includes a powerful STL file viewer and repair tool. It's designed to work seamlessly with Mac and offers advanced features for optimizing and preparing 3D models. For those looking for a simple and straightforward STL file viewer, STL Viewer is a lightweight application that allows you to quickly open and preview STL files on Mac. Whether you're a professional 3D modeler or a hobbyist, having the right tools to view and edit STL files on Mac is essential for working with 3D models. With the software options mentioned above, you can easily view, edit, and prepare your STL files for 3D printing on macOS. Whether you need advanced editing capabilities or just a basic viewer, there's a solution available for Mac users working with STL files. Try out these software options to find the best fit for your needs and start working with 3D models on your Mac with ease.