SuperSlicer review
A free, open-source slicer for advanced FFF, mSLA, multi-material and automation workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
SuperSlicer is open-source desktop slicing software for 3D-printing enthusiasts and advanced users. It converts STL, OBJ, AMF and 3MF models into G-code for FFF printers or PNG layers for mSLA printers. The software runs on Windows, macOS and Linux and supports common RepRap-based firmware such as Marlin, Prusa and Klipper. Its audience is primarily users who want detailed control over print preparation rather than a minimal workflow.
Its strongest area is control across both filament and resin printing. SuperSlicer supports multiple extruders for multi-material printing, variable layer heights within a print, automatic and manual support workflows, infill controls, perimeter tuning and built-in calibration tests. STL auto-repair can address model issues before slicing. These features give experienced users room to tune print quality and material behavior, while the breadth may feel demanding for someone seeking only default profiles and a short path from model to print.
Automation and customization make SuperSlicer particularly suitable for technical workflows. Customizable G-code macros, post-processing scripts and a command-line interface support repeatable preparation and integration into more advanced processes. It is distributed as standalone desktop software and is free under its open-source model. The published project information describes an older stable release alongside a development beta, with newer development activity also shown in releases. macOS and Linux builds are explicitly described as untested by the maintainer. Choose SuperSlicer if free, cross-platform access and deep FFF or mSLA control matter most; choose another slicer if broader verified integrations or a simpler beginner experience are priorities.
SuperSlicer pros and cons
- Where it wins
- Supports both FFF G-code and mSLA PNG-layer workflows
- Offers variable layers, multi-material printing and calibration tools
- Includes macros, post-processing, CLI automation and STL repair
- Where it doesn't
- Advanced settings may be more than casual users need
- macOS and Linux builds are described as untested
- Integration breadth is narrower than some category alternatives
SuperSlicer fact sheet, pricing and score →
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