3D Quality Tools

Printable STL parts

Split an STL File for 3D Printing

Split a large STL model into two capped, printable parts that fit your printer more easily.

Choose an STL and cut position

Only closed, manifold STL files can be split safely.

Select a non-empty .stl file, up to 25 MiB.

Also use STL Dimensions Checker, STL Quality Checker, STL Watertight Checker, printer fit guidance, and orientation guidance.

Simple, browser-friendly tools for better 3D prints.