Meshrefinery

MeshRefinery is a browser-based tool that diagnoses and repairs broken 3D models. If you've ever exported a model from an AI generator or a 3D scan and had your slicer reject it with a wall of errors, this is for you. It checks for open edges, non-manifold geometry, floating shells, and degenerate faces, then rebuilds the mesh watertight in one click. The free tier handles basic repair and format conversion between STL, OBJ, GLB, glTF, and 3MF. A paid "deep repair" option also preserves vertex colors from GLB files.

Everything runs locally using WebAssembly — your file never leaves your browser. That means no uploads, no server storage, and no privacy concerns. The diagnosis report is always free and instant, showing you exactly what's wrong before you decide to pay for a fix. The tool also includes a live 3D preview so you can rotate and inspect the model before and after repair. It works with files from Meshy, Tripo, Hunyuan, photogrammetry scans, or any other source.

MeshRefinery is built for anyone who 3D prints or works with 3D models: hobbyists, makers, small studios, and print farms. If you generate models with AI tools and keep hitting slicer errors, this saves you the headache of manual mesh cleanup. It's also useful for converting between formats while keeping color data intact. The free diagnosis alone is worth a visit — you'll know in seconds whether your file is printable.