prusa3d/PrusaSlicer

Health v2 · maintenance only

Adoption not part of the score

9365 stars · 2356 forks observed · 2026-09-25

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

PrusaSlicer is a G-code generator for 3D printers that converts 3D models (STL, OBJ, AMF) into print instructions for FFF printers or PNG layers for mSLA printers. It is a C++ application with a full GUI and a complete command-line interface built on the libslic3r slicing library, compatible with RepRap-based printers and various CNC controllers.

Use cases

• convert STL models to G-code for 3D printing
• slice models for resin mSLA printers
• prepare multi-material prints with multiple extruders
• batch-slice 3D models from the command line
• auto-repair broken STL files before printing
• customize print settings like infill, supports, and cooling

When to choose

• you need a mature, actively maintained slicer for FFF or mSLA 3D printers
• you want both a GUI and scriptable command-line slicing
• you use RepRap/Marlin/Prusa firmware printers or LinuxCNC controllers
• you need multi-material and per-object print settings

When to avoid

• you need slicing for non-3D-printing CNC workflows with specialized CAM features
• you want a lightweight library-only solution without a bundled application
• you require a slicer with a permissive license (it is AGPL-3.0)

Facets

application · maturity active

gui cli graphics simulation hardware cross-platform developer-tools windows cpp cli 3d-printing slicer gcode stl fff msla reprap linux macos

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markdown · JSON · MCP: product_card(name="prusa3d/PrusaSlicer")