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OrcaSlicer vs PrusaSlicer: catalog facts
OrcaSlicer	PrusaSlicer
Best for: Tuning a printer and a new filament properly instead of guessing	Best for: Slicing on a Prusa, or for a resin printer, without an account
Free Free and open source under the AGPL 3.0.	Free Free and open source under the AGPL 3.0. No account is required to use it.
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	Handles both filament and resin printers in one program Per-layer setting changes and painted supports and seams All 4 strengths for PrusaSlicer Handles both filament and resin printers in one program Per-layer setting changes and painted supports and seams Profiles for printers well beyond Prusa's own range No account needed, and the project says so plainly
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	Linux builds come only through Flathub Tuned first for Prusa hardware; other machines need profile work All 3 limitations for PrusaSlicer Linux builds come only through Flathub Tuned first for Prusa hardware; other machines need profile work The interface exposes fewer calibration tools than OrcaSlicer
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0	License: AGPL-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 PrusaSlicer prusa3d.com/prusaslicer github.com/prusa3d/PrusaSlicer Catalog checked September 21, 2026

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