Alternatives to PrusaSlicer
Prusa Research's slicer, based on Slic3r, for both filament and resin printers and no account required. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
PrusaSlicer
Prusa Research's slicer, based on Slic3r, for both filament and resin printers and no account required.
Replacements
Listings that take over the same core job as PrusaSlicer.
SuperSlicer
A PrusaSlicer fork with extra fine-tuning settings, generated calibration tests and better thin-wall handling.
SuperSlicer is a PrusaSlicer fork adding generated calibration prints, finer top-surface settings and better thin-wall handling, but it is single-maintainer, with its last stable release tagged in 2024.
OrcaSlicer
A slicer built around calibration, with temperature towers and flow tests you run from inside the program.
OrcaSlicer adds built-in calibration tests for temperature, flow, retraction and pressure advance plus scarf seams, though releases occasionally regress a printer profile.
UltiMaker Cura
The most widely used free slicer for filament 3D printers, with profiles for hundreds of machines.
UltiMaker Cura is LGPL-3.0 licensed, with profiles for hundreds of printers and a plugin marketplace, but it is heavier and slower to start.
Bambu Studio
Bambu Lab's slicer, built on PrusaSlicer, with project-based workflows, multi-material painting and remote printer monitoring.
Bambu Studio is a fork of PrusaSlicer that adds multi-material painting, STEP import and remote monitoring, but it is built around Bambu Lab hardware and accounts.
Simplify3D
Prepare and preview print jobs with a commercial 3D slicer.
Simplify3D is a closed-source commercial slicer requiring a paid license and an appropriate printer profile, replacing PrusaSlicer's free AGPL-3.0 licensing.
ideaMaker
Prepare 3D models for printing with Raise3D's slicer.
ideaMaker is Raise3D's free but closed-source slicer, and its printer profiles and advanced features depend on supported hardware.
KISSlicer
Fast, compact slicer that converts STL models into G-code for filament printers.
KISSlicer is a fast, simple closed-source slicer for filament printers only, and its free version is limited to a single extruder.
IceSL
Slicer with built-in modelling that turns STL files into printer-ready G-code.
IceSL is free but closed source, adds a scriptable modeller for procedural geometry, and has thinner documentation and printer profiles.
Also worth comparing
These listings name PrusaSlicer as their own alternative, so the relationship runs both ways.
ChiTuBox Basic
Resin 3D printing slicer that prepares models for SLA, DLP and LCD machines.
PrusaSlicer is free and open source under AGPL-3.0, runs on Linux, and slices both resin and filament printers in one program without needing an account.
Creality Print
Creality's official slicer for preparing models and sending prints to its FDM 3D printers.
PrusaSlicer is AGPL-3.0, needs no account and handles filament and resin, but it is tuned first for Prusa hardware so Creality machines need profile work.
ElegooSlicer
ELEGOO's open-source FDM slicer, based on OrcaSlicer, for Centauri, Neptune and other FDM printers.
PrusaSlicer is open source under AGPL-3.0, handles both filament and resin printers, needs no account, but exposes fewer calibration tools and is tuned first for Prusa hardware.
Formware 3D
Print-preparation software for DLP, resin and inkjet 3D printers, including support generation.
PrusaSlicer is free and open source under AGPL-3.0, handles both resin and filament printers on Windows, macOS and Linux, and needs no account.
GrabCAD Print
Stratasys print-preparation software that slices CAD files and sends them to Stratasys 3D printers.
PrusaSlicer is free AGPL-3.0 software handling filament and resin printers without an account, tuned for Prusa hardware rather than Stratasys printers.
Kiri:Moto
Generate 3D-printing and CNC toolpaths in a browser.
PrusaSlicer is a desktop application under AGPL-3.0 that slices filament and resin printers, but it does not generate CNC toolpaths.
Lychee Slicer
A resin-focused slicer with a free tier, strong automatic supports and a large printer profile library.
PrusaSlicer is free and open source under AGPL-3.0, slices both resin and filament printers, and needs no account, which Lychee expects.
MatterControl
Open-source desktop app for designing, slicing and controlling 3D prints on Windows, Mac and Linux.
PrusaSlicer is an AGPL-3.0 slicer handling filament and resin printers with painted supports and seams, but has no built-in design tools and relies on Flathub for Linux.
mslicer
Slice 3D models for resin printers.
PrusaSlicer is also open source, under AGPL-3.0, and slices resin and filament printers in one program, with painted supports and no account needed.
Orca-Flashforge
Flashforge's slicer based on OrcaSlicer, tuned for its Adventurer and AD5X 3D printers.
PrusaSlicer is AGPL-3.0 open source, supports filament and resin printers without an account, and exposes fewer calibration tools, with Flashforge printers needing profile work.
PreForm
Formlabs print preparation software for its SLA resin and SLS powder 3D printers.
PrusaSlicer is open source under AGPL-3.0, runs on Linux via Flathub and slices for resin and filament printers, though not for Formlabs SLS machines.
QIDI Studio
QIDI's official open-source slicer that prepares 3D models for printing on QIDI printers.
PrusaSlicer supports filament and resin printers well beyond Prusa's range without an account, though non-Prusa machines may need profile work and Linux builds come via Flathub.
Snapmaker Orca
Snapmaker's fork of the OrcaSlicer slicer, tuned for Snapmaker 3D printers.
PrusaSlicer handles filament and resin printers without an account, though Snapmaker machines would need profile work and Linux builds come only through Flathub.
Similar software
Related functionality, not a direct replacement.
UVtools
Inspect and repair sliced resin-print files.
Teaching Tech 3D Printer Calibration
Web-based 3D printer calibration walkthrough with a gcode generator for custom test towers and prints.
