3D Converter is a browser-based 3D model converter and viewer. Local routes cover STL, OBJ, PLY, GLB, glTF, FBX, 3MF, DAE, 3DS and RBXM. Every export is reopened and checked, with a report comparing dimensions, triangles, objects, materials, textures, units and axis. The viewer offers projection switching, wireframe inspection and mesh statistics.
Local conversions are free with no sign-up, up to a 100 MB file limit. OBJ and glTF files need their referenced files included. STEP and IGES use a separate cloud path after a verified user starts an upload.
Moving a model between tools should not mean uploading it to an unknown server. 3D Converter converts common formats locally in the browser, and every export is checked so you can see what changed before you download.