3D Printer File Converter
Convert STL, 3MF, OBJ, and other common 3D printer files for slicing, previewing, repair, and model exchange workflows.
Popular printer file tools
3MF to STL
Export a 3MF print project to STL for slicers and print services that need simple mesh geometry.
STL to OBJ
Move STL geometry into OBJ workflows for modeling, previewing, or mesh exchange.
STL Viewer
Inspect an STL file before converting, repairing, or sending it to a slicer.
3MF Viewer
Preview 3MF files with print metadata before choosing whether conversion is needed.
When to convert a 3D printer file
Conversion is useful when the next step in your workflow needs a different format. View and repair the model first so the exported file carries clean geometry into slicing or exchange.
Match the next tool
Convert when a slicer, repair utility, marketplace, or print service does not accept the file you have.
Repair before slicing
Preview and fix scale, normals, holes, and thin walls before exporting to the format your slicer expects.
Exchange clean geometry
Use STL, 3MF, or OBJ depending on whether the receiver needs broad compatibility, print metadata, or model exchange.