Split your 3D models — any way you want.

Open Split3MF See the tools

Nine tools.
Every way to split.

Split by color

Click a painted region and it becomes its own part, ready to print in its own filament.

Try it

Paint

Add colors, then fill a region, draw with a brush or paint a height band.

Try it

Smooth boundary

Turn a jagged color edge into a clean curve before you split.

Try it

Fit to printer

Too big for your printer? Split it into pieces that fit the bed, with numbered joints and connectors.

Try it

Size & position

Drag to move, type a size in cm, turn it, or fill the printer with copies.

Try it

Repair & simplify

Fix holes and flipped faces, then reduce the triangles. Colors stay.

Try it

Manual cut

Move and tilt a cutting plane, or sketch your own cut line.

Try it

Connectors

Click a cut face to add a peg and a matching socket, with print clearance.

Try it

Mesh editIn progress

Raised text and shapes on your model. Still being built.

Good to know.

Ask on GitHub
Do I need to install anything?

No. Open the site and drop in a file.

Which files can I use?

Open 3MF, OBJ and STL files. Download your work as 3MF, which keeps the colors, or as STL.

Is it free?

Yes, you can use it for free. Tools and features marked with a crown are Pro: you can try them for free, and downloading work edited with them needs Pro.

Will it work with my printer?

Pick from 30 printer presets, from makers such as Bambu Lab, Prusa and Creality, or add your own printer with its size and keep-out areas.

Which slicer opens the files?

Downloads are standard 3MF and STL files. Color 3MF projects keep Bambu-style paint data and project settings, made for Bambu Studio.

Start splitting.

Open Split3MF — free