3D Converter

3D Converter is a free online 3D model converter and viewer that runs in your browser. Open a model, pick an output format, and see what carries through before you download. STL, OBJ, PLY, 3MF, FBX, 3DS, GLB, glTF, DAE and RBXM convert locally, so the model is parsed on your device instead of being uploaded, and no account is needed. Every export is re-opened and checked, with a before-and-after report. A built-in 3D viewer shows dimensions and mesh statistics. Free plan covers unlimited local conversion; Pro is $9.9/month.