What is MatterControl?

MatterControl is a free, open-source software package for designing, preparing, and managing 3D prints, with design and print preparation capabilities.

Is MatterControl open source?

Yes. MatterControl is open source under the BSD-2-Clause licence. Its source code is on GitHub at MatterHackers/MatterControl and is written mainly in C#.

Is MatterControl free?

Yes. MatterControl is open source, so the software itself is free to use.

Can I self-host MatterControl?

Yes. MatterControl can be self-hosted on your own server or infrastructure.

What is MatterControl an alternative to?

MatterControl is an open-source alternative to Simplify3D. Other open-source alternatives to Simplify3D include OrcaSlicer, PrusaSlicer and UltiMaker Cura.

Is MatterControl actively maintained?

Yes. The most recent commit to MatterControl was on 17 July 2026. The project has 507 stars on GitHub.

MatterControl: open-source alternative to Simplify3D

About MatterControl

MatterControl is a free, open-source software package that lets users design, prepare, and manage 3D prints. It includes design and print preparation capabilities, as well as templates in its Design Apps to help start creations.

The software is available for Windows, Mac, and Linux. It allows personalization and customization of each design. For designing or editing parts, MatterCAD is the upgraded replacement for MatterControl's design and editing tools.

Key features

Design, prepare, and manage 3D prints in one program
Personalize and customize each design
Design and print preparation capabilities
Templates in Design Apps to kickstart creations

Built with: C# tools
Tags: 3d-printing; design; print-preparation; open-source; mattercontrol

MatterControl: questions and answers

What is MatterControl?: MatterControl is a free, open-source software package for designing, preparing, and managing 3D prints, with design and print preparation capabilities.
Is MatterControl open source?: Yes. MatterControl is open source under the BSD-2-Clause licence. Its source code is on GitHub at MatterHackers/MatterControl and is written mainly in C#.
Is MatterControl free?: Yes. MatterControl is open source, so the software itself is free to use.
Can I self-host MatterControl?: Yes. MatterControl can be self-hosted on your own server or infrastructure.
What is MatterControl an alternative to?: MatterControl is an open-source alternative to Simplify3D. Other open-source alternatives to Simplify3D include OrcaSlicer, PrusaSlicer and UltiMaker Cura.
Is MatterControl actively maintained?: Yes. The most recent commit to MatterControl was on 17 July 2026. The project has 507 stars on GitHub.