Where Are PrusaSlicer Settings Stored?
PrusaSlicer stores settings and profiles in a per user data folder. The main file is PrusaSlicer.ini plus vendor and preset folders.
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PrusaSlicer keeps user profiles outside the install folder. The data folder contains PrusaSlicer.ini, print and filament presets, vendor bundles and snapshots. Use Help plus Show Configuration Folder to open it.
Stable and alpha or beta builds use separate folders. This prevents test builds from altering stable presets. Flatpak installs on Linux use a sandboxed config path.
Where PrusaSlicer stores this, by platform
C:\Users\<username>\AppData\Roaming\PrusaSlicer\PrusaSlicer.ini
Main settings file. <username> stands for your Windows login name. The parent PrusaSlicer folder holds presets and snapshots. Alpha builds use PrusaSlicer-alpha and beta builds use PrusaSlicer-beta.
/Users/<username>/Library/Application Support/PrusaSlicer/PrusaSlicer.ini
Main settings file. <username> stands for your macOS login name. The parent PrusaSlicer folder holds presets and snapshots. Alpha builds use PrusaSlicer-alpha and beta builds use PrusaSlicer-beta.
/home/<username>/.config/PrusaSlicer/PrusaSlicer.ini
Main settings file. <username> stands for your Linux login name. The parent folder holds presets and snapshots. Flatpak installs use /home/<username>/.var/app/com.prusa3d.PrusaSlicer/config/PrusaSlicer instead.
Frequently asked questions
What should I back up to preserve my profiles?
Back up the full PrusaSlicer data folder, not only the ini file. Presets live in print, filament and printer subfolders. The ini file also stores window state and recent paths.
What if PrusaSlicer reports a corrupt ini file?
Close PrusaSlicer, then delete or rename PrusaSlicer.ini. Your downloaded presets usually remain intact. Restart to generate a fresh ini file.
Notice an outdated path? Let us know.