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

• Generates its own calibration test prints instead of making you find models
• Fine-grained top-surface settings including only-one-perimeter-on-top
• Better thin-wall handling, anchored into the print rather than left loose
• Handles FFF G-code and masked SLA PNG layers from one program

• 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

• The author states the Linux and macOS builds are compiled but not tested by them
• The last tagged stable release is from 2024, with newer work in nightly builds
• The extra settings make an already dense interface denser
• A single-maintainer fork tracking PrusaSlicer upstream

• 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

• github.com/supermerill/SuperSlicer

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