Next3D Convert is a free browser-based 3D model converter for creators, developers, makers, and ecommerce teams. Upload a model file, choose an output format, convert in the browser, and download the converted asset for web 3D, games, ecommerce, AR/VR, prototyping, and 3D printing workflows. It supports OBJ, STL, GLTF, GLB, PLY, FBX, 3MF, and AMF.