Convert OBJ files to 3MF in seconds. Geometry, UVs and materials are carried over where 3MF supports them, and the model lands the right way up.
Drop it on the converter above or click browse. It opens in your browser, so nothing is uploaded.
3MF is already selected. You can switch to any other output from the menu.
Click Convert and your 3MF file is ready in seconds. Download it straight away.
OBJ is a plain-text mesh format with optional texture coordinates and normals; materials and textures live in a companion .mtl file. It opens almost everywhere, from Blender to 3D printing software.
3MF is the modern 3D printing format from the 3MF Consortium. Unlike STL it records units, colours and multiple objects in one compressed file, and it is the native project format of Bambu Studio and PrusaSlicer.
If your OBJ has companion files (.mtl and texture images), select them together with the OBJ file so materials come through.
Colours and texture coordinates are carried over when 3MF supports them. 3MF does not store textures, so only the geometry and colours carries over.
No. OBJ and 3MF may use different "up" directions, and we rotate the model so it stands the same way in your software.
No. The conversion runs inside your browser.