Meshstats is a Blender addon that provides mesh statistics.
- Display counts for tris, quads & ngons.
- Display counts for e-poles (vertices with 5 edges), n-poles (vertices with 3
edges) and *-poles (vertices with 6 or more edges - fan center).
- Set a polygon budget for mesh objects and display how much of it is
- Display quads & tris as an overlay. (in object mode)
- Display e-poles, n-poles & *-poles as an overlay. (in object mode)
Download the addon here.