Quadify - Clean Quad Retopology For Blender Meshes

Quadify includes a mesh health check aimed at meshes coming back from generators like Meshy or Rodin, which often arrive with non-manifold edges, inconsistent winding, and no usable topology. The check counts the real defects — non-manifold edges, faces of genuinely zero area, and faces whose winding disagrees with their neighbours — then repairs them and converts the result to quad topology. It reports exact counts before and after, so you can see what it actually changed rather than trusting an unexplained output.

Quadify is built for exactly that case. A CAD export often lands in Blender as a dense n-gon shell with no subdivision and no clean loop cuts, so native tools do not edit it properly. Running Quadify keeps the same silhouette while producing quad-dominant topology, after which Blender features such as Subdivision Surface, Ctrl+R loop cuts, and weight painting behave the way they are supposed to again. Because the output is controllable quads rather than triangles, downstream editing follows the normal Blender workflow.

Quadify refuses operations it cannot complete rather than returning a broken mesh. Voxel remeshing, for instance, needs a closed volume; a windshield modelled as a single curved surface has none, so Quadify detects the situation, stops, names the reason, and points at what to use instead. If a step inside the pipeline throws an error, it tells you which step failed and why. In a batch, a single degenerate object is skipped and reported at the end while the remaining objects still complete.

Quadify creates a hidden duplicate of your object rather than a shape key that the operation would delete on its way through. Before any destructive step it also inspects the object and lists exactly what is at stake, naming the specific shape keys and UV maps — such as 'Basis, Key 1' and 'UVMap' — instead of a vague warning that some data may be lost. The duplicate is still there afterward, so if you decide you preferred the original you can go back to it.

Quadify is listed as free in this catalog. The add-on ships in multiple editions with different capability sets — a base tier that handles one object at a time, and higher tiers that add batch processing and automatic method recommendation. For current licensing terms and to confirm what each edition includes, check the developer's page from Anvil Interactive Solutions. Documentation, support from Anvil Interactive Solutions, and product updates are noted as part of the offering, and a demo video is available.