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OrcaSlicer vs UltiMaker Cura: catalog facts
OrcaSlicer	UltiMaker Cura
Best for: Tuning a printer and a new filament properly instead of guessing	Best for: Slicing for a filament printer when you want profiles that already exist
Free Free and open source under the AGPL 3.0.	Free Free and open source under the LGPL 3.0. An UltiMaker account is optional and only needed for cloud… Full pricing details for UltiMaker Cura Free and open source under the LGPL 3.0. An UltiMaker account is optional and only needed for cloud features.
Windows, macOS, Linux	Windows, macOS, Linux
Built-in calibration tests for temperature, flow, retraction and pressure advance Scarf seams and wall spacing control for visibly better surfaces All 4 strengths for OrcaSlicer Built-in calibration tests for temperature, flow, retraction and pressure advance Scarf seams and wall spacing control for visibly better surfaces Profiles for Bambu, Prusa, Voron, RatRig and Creality machines Windows, macOS, Linux AppImage and Flatpak builds including ARM64	Profiles for hundreds of printers, not just UltiMaker's own Recommended presets hide the settings until you want them All 4 strengths for UltiMaker Cura 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
More settings exposed than a first-time printer owner needs Copycat sites such as orca-slicer.com push unsafe downloads, so use orcaslicer.com All 3 limitations for OrcaSlicer More settings exposed than a first-time printer owner needs Copycat sites such as orca-slicer.com push unsafe downloads, so use orcaslicer.com Releases move fast and occasionally regress a printer profile	Heavier and slower to start than the newer slicers Hundreds of settings once you leave the recommended mode All 3 limitations for UltiMaker Cura 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
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: LGPL-3.0
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for OrcaSlicer orcaslicer.com github.com/SoftFever/OrcaSlicer Catalog checked September 21, 2026	Official website Full listing and sources Sources for UltiMaker Cura ultimaker.com/software/ultimaker-cura github.com/Ultimaker/Cura Catalog checked September 21, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.