Ultimaker-Cura
Ultimaker Cura is a free, open-source 3D print preparation and slicing software developed by Ultimaker, a leading 3D printer manufacturer. It converts digital 3D models (STL, OBJ, etc.) into machine-specific G-code instructions that tell a 3D printer how to build an object layer by layer. Cura includes print profile management, support structure generation, preview and estimation tools, and plugins for material databases and printer integrations. It is used by hobbyists, makers, engineers and professionals who own FDM (Fused Deposition Modeling) 3D printers from Ultimaker and dozens of third-party vendors.
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1 suggestionUltimaker Cura currently ships as an Intel-only (X86-64) application and does not yet have a native Apple Silicon build, according to the latest reported status. The app continues to run under Rosetta 2 today, but Apple is removing Rosetta in macOS 28 (September 2028), meaning Cura will stop launching on that release unless a native build is released beforehand. Watch the Ultimaker Cura releases page and changelog for announcements of native Apple Silicon support. Given that Cura is actively maintained open-source software under active development and is commercially important to Ultimaker (whose own printers are sold globally), a native build is reasonably likely before the September 2028 deadline, so periodic checking is a better strategy than abandoning the software today. If you need a contingency plan, Prusa Slicer (free, open-source, based on Cura) and IdeaMaker (by Raise3D) both have confirmed native Apple Silicon support and accept many of the same model and profile formats, though switching slicers does require some relearning of the UI and settings.
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