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Free and open source under the LGPL 3.0. An UltiMaker account is optional and only needed for cloud features.

Free and open source under the AGPL. Some cloud features expect a Bambu Lab account, but local printing does not.

• Profiles for hundreds of printers, not just UltiMaker's own
• Recommended presets hide the settings until you want them
• Layer preview shows the toolpath before you start the print
• Plugin marketplace for model sources and post-processing scripts

• Multi-material painting with transition filament flushed into infill rather than a purge tower
• Remote control and monitoring of a networked printer from the slicer
• Reads STEP files and emits arc moves (G2/G3), plus assembly and explosion views
• Multiple build plate management, auto-arrange and auto-orient

• Heavier and slower to start than the newer slicers
• Hundreds of settings once you leave the recommended mode
• Calibration tooling is thin compared with OrcaSlicer

• Built around Bambu Lab hardware; other printers need profiles set up by hand
• Cloud features push you towards a Bambu account
• Linux support is AppImages for Ubuntu and Fedora plus a Flatpak, not native packages
• Heavier and busier than PrusaSlicer, which it forked from

• ultimaker.com/software/ultimaker-cura
• github.com/Ultimaker/Cura

• github.com/bambulab/BambuStudio