What are free tools for reduce trees 3D models?

Free tools for reducing tree 3D models include Blender (with its Decimate modifier) and MeshLab (via simplification filters). Blender’s Decimate modifier lowers polygon count while retaining the tree’s shape—ideal for optimizing models for games or web use. MeshLab uses filters like Quadric Edge Collapse to cut complexity without losing key details (e.g., branches, leaves). For beginners, Blender is simple: adjust the Decimate ratio (e.g., 0.5 for 50% reduction) to balance file size and quality easily.