Blender’s built-in Decimate modifier, Clean Up tools, and FBX export settings are the best options to optimize FBX 3D models.
- The Decimate modifier lowers polygon count (key for high-poly assets to reduce size). - Clean Up tools fix issues like duplicate vertices or broken edges, ensuring clean geometry. - Export settings strip unused data (e.g., extra animations) to further slim files.
For games or web, test the exported FBX in your target tool (e.g., Unity) to balance quality and performance without over-optimizing.