About these CAD and 3D tools
View, measure, and repair CAD and 3D files in your browser. Drop a STEP or DXF from an engineering handoff, an STL before a 3D print, an OBJ, PLY, or GLB from a scan or game pipeline, a 3MF from your slicer, or a Gerber fab archive for a PCB, and open it without installing the native software. The STEP Viewer tessellates the real part geometry with a CAD kernel compiled to WebAssembly, then finds holes, measures wall thickness, and computes mass. The mesh viewers read minimum wall, undercuts, and draft straight from the mesh, and the Mesh Fixer repairs the problems that break prints: holes, flipped normals, and non-manifold edges. Each viewer loads its engine with the first file you drop, so the rest of the site stays fast, and every file stays on your device: CAD models, board layouts, and scan data are exactly the files that should not sit on a stranger's server. Viewing is read-only by design (pan, zoom, orbit, measure, inspect, export), and real editing stays in the native tools.