Are you a designer, engineer, or 3D artist looking for the perfect software to view and interact with STL files on your Mac? Look no further! We have curated a list of the best STL viewer for OSX that will meet all your visualization and manipulation needs.

1. **PrusaSlicer:** This open-source slicing software also comes with a built-in STL viewer that allows you to inspect and interact with your 3D models. It offers advanced features such as layer editing, variable layer height, and customizable support structures.

2. **MeshLab:** MeshLab is a powerful open-source system for the processing and editing of unstructured 3D triangular meshes. It also includes a feature-rich STL viewer that provides comprehensive tools for visualizing and analyzing your models.

3. **FreeCAD:** While primarily a parametric 3D CAD modeler, FreeCAD also includes a module for viewing and inspecting STL files. It provides a user-friendly interface and supports a wide range of file formats, making it a versatile choice for designers and engineers.

4. **Fusion 360:** Autodesk's Fusion 360 is a professional-grade software that offers advanced 3D modeling and visualization tools. It comes with a comprehensive STL viewer that allows for precise inspection and manipulation of models, making it a top choice for professionals.

5. **Blender:** Known for its versatile capabilities in 3D modeling, animation, and rendering, Blender also includes a robust STL viewer. It provides various visualization and editing tools, making it suitable for both beginners and advanced users.

6. **Cura:** While mainly a slicing software for 3D printing, Cura also comes with a built-in 3D model viewer. It offers simple and intuitive tools for visualizing and preparing your models for 3D printing, making it a convenient option for hobbyists and enthusiasts.

Whichever software you choose, you can rest assured that you will have access to a powerful STL viewer for OSX that will enhance your ability to visualize and manipulate 3D models with precision and efficiency. Install one of these top-notch solutions and take your 3D design and modeling to the next level on your Mac!