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PrusaSlicer CAD software logo

PrusaSlicer

★ 4.7Expert Score
Origin: Czech Republic
100% Open Source

PrusaSlicer is Prusa Research's open-source slicer, originally a Slic3r fork, now the slicer with the fastest pace of innovation — Organic Supports, ironing, multi-material with Prusa MMU, and SLA support.

#Organic / tree supports with industry-best quality#FDM and SLA / DLP slicing in one app#Multi-material with MMU and toolchanger support#Adaptive cubic infill#Connect cloud printer monitoring#Profiles for 50+ printer brands
Core / Render Engine
PrusaSlicer (Slic3r-derived)
Industry Standards
STL, 3MF
Market Seg.
Hobbyist
Pricing Model
Open Source

Full Pricing Breakdown

Regional & Multi-Currency Pricing Notice

Official software licensing terms, volume discounts, educational exemptions, and renewal fees vary significantly across countries, exchange rates, and regional authorized resellers. Click below to verify real-time terms directly on the vendor portal.

Recommended
Open Source
Open SourceNo Commercial License Fee
  • Organic tree supports
  • Multi-material painting
  • Direct STEP file import
  • Built-in cut & hollow tools
Get Open Source

Key Capabilities

Slicing

Organic supports
Tree supports
FDM slicing

SLA

SLA slicing
DLP slicing
Multi-material

Advanced

Adaptive cubic infill
Ironing
MMU support

Cloud

Cloud monitoring
Printer profiles
Connect cloud

Environment Support

Certified OSWindows, macOS, Linux
Multi-threadingYes
GPU OptimizationOpenGL

Industry Standards

STL3MFOBJG-code

Compatibility & Interoperability

File Format Support

Import
STL3MFOBJSTEPAMF
Export
G-Code3MFSL1Toolpath preview

Native Integrations

OctoPrint / Klipper / MoonrakerDirect 3D CAD Send-to-PrintMulti-Material AMS Profiles

Deployment Options

Desktop

Interface Languages

English

API & Developer Access

API
CLI Slicing Engine & Post-Processing Scripts
SDK Languages
PythonC++Shell
View API Documentation

Trust & Support

Support Channels

CommunityDocumentationKnowledge Base

License Types

Open-SourceFree

The Pros

  • Best support generation in the industry (Organic Supports)
  • Free and open-source under AGPL
  • Frequent major releases with real new features

The Cons

  • Profile optimisation skewed toward Prusa hardware
  • Some advanced features lag Bambu Studio for high-speed CoreXY
  • Cloud features tied to Prusa Connect

CADGuide Verdict

Final Professional Conclusion

"An excellent, feature-packed open-source slicer optimized for Prusa and generic FDM 3D printers."

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PrusaSlicer CAD software logo
Editor Score
4.7 / 5.0
Highly Recommended

Expert Q&A

?What is PrusaSlicer used for?

PrusaSlicer is Prusa Research's open-source slicer, originally a Slic3r fork, now the slicer with the fastest pace of innovation — Organic Supports, ironing, multi-material with Prusa MMU, and SLA support. It is widely used across Maker, Education, Manufacturing for Organic / tree supports with industry-best quality, FDM and SLA / DLP slicing in one app, Multi-material with MMU and toolchanger support.

?How much does PrusaSlicer cost?

PrusaSlicer is 100% free and open-source software with no subscription fees, seat limits, or commercial licensing charges.

?Is PrusaSlicer really free?

Yes — PrusaSlicer is open-source software released under a permissive license. You can download and use it without paying a license fee. Premium services, training, or vertical add-ons may be sold separately.

?What operating systems does PrusaSlicer support?

PrusaSlicer runs on Windows, macOS, and Linux.

?Which file formats does PrusaSlicer support?

PrusaSlicer imports STL, 3MF, OBJ, STEP, AMF and exports G-Code, 3MF, SL1, Toolpath preview. Direct CAD associative interfaces and neutral solver/exchange formats are supported depending on your licensed modules.

?What are the best alternatives to PrusaSlicer?

The closest alternatives to PrusaSlicer are Bambu Studio, UltiMaker Cura, Simplify3D. Bambu Studio (free and open-source) competes directly on core Maker workflows, while UltiMaker Cura (free and open-source) is another top-rated option in the same category. Compare their full specifications, file-format compatibility, and TCO side-by-side on CADGuide.

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