Mesh Medic

Diagnose & Fix Common Mesh Issues

Clean up any 3D mesh in seconds — straight from the N-panel.

Whether you're working with AI-generated models, scanned geometry, or assets from the web, bad mesh data is a constant headache: duplicate vertices, Ngons, zero-area faces, loose geometry, and flipped normals. These issues cause rendering artifacts, physics failures, and broken rigs.

Mesh Medic diagnoses and fixes all of these problems in one simple panel — no digging through menus required.

Features

Diagnose Run a full diagnosis on any mesh (or multiple meshes at once) and get an instant report:

• Duplicate Vertices
• Duplicate Faces
• Ngons (5+ sided polygons)
• Zero Area Faces
• Loose Vertices
• Loose Edges
• Unapplied Scale / Rotation
• Flipped Normals (via Face Orientation overlay)

Fix Every issue comes with a dedicated Fix button. Or hit Fix All to resolve everything in one click.

• Merge duplicate vertices (by distance)
• Remove duplicate and zero-area faces
• Convert Ngons to Tris or Quads (your choice)
• Delete loose vertices and edges
• Apply scale and rotation transforms
• Recalculate normals (clears Custom Split Normals automatically)

Select Not sure where the problem is? Each issue has a Select button that jumps into Edit Mode and highlights the affected geometry — so you can inspect or fix it manually.

Multiple Object Support Select multiple objects and diagnose or fix them all at once. Results are shown as a combined total.

How to Use

1. Select the object(s) you want to clean up
2. Open the Mesh Medic tab in the N-panel (View3D Sidebar)
   
3. Click Run Diagnosis
   
   
4. Review the report, then click Fix All — or fix issues individually

Compatibility

• Blender 4.2+ → Install as an Extension (.zip)
• Blender 4.1 and below → Install the .py file directly

Both files are included in the download.

Notes

• To Quads conversion is a best-effort operation. Complex Ngons may leave some triangles behind — this is a Blender limitation, not a bug.
• Face Orientation overlay (Blue = OK, Red = Flipped) can be toggled directly from the panel.
• Fix operations are undoable via Ctrl+Z.