Rotate any STL/OBJ/GLB 180° around the X axis to fix upside-down imports. Common when bringing CAD into print slicers. Browser-based.
Upload your model
We apply a 180° rotation around the X axis (Y-Z swap)
Download — model is right-side up
0 bytes uploaded. Z-Axis Flipper runs entirely in your browser using three.js and WebGL. Your meshes never leave your device.
Z-up vs Y-up convention mismatch. Blender, 3ds Max, and CAD use Z-up. three.js, Maya, and game engines use Y-up. Slicers usually use Z-up. Mismatched exports flip the model.
You can, but it's a manual step every time you re-export. Flip once with this tool and your file is correct everywhere downstream.
Not in this tool — it's specifically the 180° flip case. For arbitrary rotations use the Print Orientation Optimizer or your slicer's rotate tool.
Test 6 canonical orientations and rank by support area, footprint, and overhang. Find the print-friendly pose without manual rotation. Browser-based.
Open toolAuto-scale STL/OBJ/GLB models to fit any printer bed (X/Y/Z mm). Maintains proportions. Browser-based, no upload.
Open toolRecompute consistent face and vertex normals on any STL/OBJ/GLB. Fixes inverted shading, missing normals, and flipped triangles.
Open tool