by KewlSheet·Modeling
Illustrative cover generated by AnyPlugins — no product screenshot available.
Check Mesh earns its place in the superhive library for keeping topology diagnostics live inside Blender's native Overlays menu, with Sculpt mode and retopo support built in.
Check Mesh is a real-time diagnostic overlay that lives inside Blender's native Overlays menu. Kept active while you model, it highlights topology flaws the moment they appear, from the first vertex to the last.
It detects N-gons, triangles, non-manifolds, complex poles, non-flat faces, sharp edges, seams, intersecting faces, and overlapping faces. Error highlights use customizable colors, so you can pick high-contrast tones against your theme or MatCaps. The add-on also includes Sculpt mode and retopo overlay support, and its UI integrates directly into the Overlays menu.
Check Mesh installs as a Blender Extension through drag and drop or Preferences → Add-ons, then toggles on from the Overlays dropdown. It supports Blender 4.0 through 5.0, works with the Cycles and Eevee render engines, and is distributed under the GPL license. It's aimed at prepping models for Subdiv-modeling, game engines such as UE5 and Unity, or 3D printing.
Check Mesh is best for modelers preparing clean topology for Subdiv-modeling, game engines such as UE5 and Unity, or 3D printing.
Check Mesh is completely free to download and use.
Check Mesh supports Blender versions 4.0 through 5.0 and is listed as Extension Compatible, so it installs through Blender's extension system. It integrates into the native Overlays menu in the 3D Viewport, where you toggle the Check Mesh section on and enable the checks you want. The add-on works with the Cycles and Eevee render engines. For the latest compatibility details, check the developer's page before installing on a specific build.
Check Mesh installs as a Blender Extension. You can drag and drop the file into Blender or add it through Preferences → Add-ons. Once enabled, open the Overlays dropdown in the 3D Viewport, toggle the Check Mesh section on, and enable the checks you need. Flaws are then highlighted live in your chosen colors as you model. The developer's Discord community offers support if you run into setup questions.
Check Mesh includes Sculpt mode and retopo overlay support, so its diagnostics stay visible beyond standard modeling. As a real-time overlay, it detects N-gons, triangles, non-manifolds, complex poles, non-flat faces, sharp edges, seams, intersecting faces, and overlapping faces the moment they appear. Each error type is highlighted in customizable colors you can set for contrast against your theme or MatCaps. It lives in Blender's native Overlays menu and can stay active while you model.
Check Mesh is listed as free in this catalog, and it is distributed under the GPL license. For current licensing terms, pricing, or any changes to how the add-on is offered, refer to the developer's page. Support is also available through the creator's Discord community, where you can report bugs or ask questions directly. The add-on is published by KewlSheet and runs within Blender 4.0 through 5.0.
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