Free online STL viewer
Check an STL file before slicing or printing, directly in your browser. The same viewer also opens GLB, glTF, OBJ and PLY files.
Drag and drop a 3D file here, or
Supported formats: GLB, glTF, OBJ, STL, PLY.
Mesh check
Checked in your browser. Nothing is uploaded.
Files are processed entirely in your browser and never leave your device. For textured models use .glb, which packs geometry and textures into a single file.