Head-to-head · 3D Printing Software
Slic3r vs PrusaSlicer
Slic3r leads on 0 checks, PrusaSlicer on 0, and 7 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreSlic3r · 9.0/10
- Free planboth
- Most featuresPrusaSlicer · 5 of 6
Slic3r scores higher on our rubric for 3d printing software: 9.0 against 7.7 out of 10; our editors rank them #3 and #8.
Slic3r is the better fit for established free FDM slicing. PrusaSlicer is the better fit for free multi-material slicing with automation options.
- Slic3r fits best
Established free FDM slicing
- PrusaSlicer fits best
Free multi-material slicing with automation options
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Side by side
| Feature | Slic3r 9.0/10 Visit ↗ | PrusaSlicer 7.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.0 | 7.7 |
| Ranking | #3 in 3D Printing Software | #8 in 3D Printing Software |
| Best for | Established free FDM slicing | Free multi-material slicing with automation options |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop | Desktop |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Integrations | 1 integrations | 5 integrations |
| Features Slic3r 4/6 · PrusaSlicer 5/6 | ||
| Auto supports | ✓ | ✓ |
| Printer control | ✓ | ✓ |
| Print monitoring | Not checked yet | ✓ (best) |
| Cloud slicing | Not checked yet | — |
| Multi-material tools | ✓ | ✓ |
| Model repair | ✓ | ✓ |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | Slic3r is open-source 3D printing software for preparing digital models for FFF/FDM printing. It slices models into layers, generates G-code and toolpaths, and provides visual previews for inspecting print paths. The desktop application… Read the review → |
PrusaSlicer is desktop software for converting 3D models into printable G-code. It supports FDM and resin workflows, configurable printer and material profiles, automatic and manual support generation, multi-material preparation, model… Read the review → |
Strengths and trade-offs
Slic3r — where it wins
- Free, open-source slicing for Windows, macOS, and Linux
- Support generation, mesh repair, and multi-material preparation
- Printer control, OctoPrint integration, and batch processing
Where it doesn't
- Primarily aimed at advanced users
- SLA/DLP workflows are experimental
- The official site lists version 1.3.0 from 2018
PrusaSlicer — where it wins
- Free, open-source slicing for Windows, macOS, and Linux
- Multi-material painting, multi-extruder preparation, and support generation
- Command-line automation with preview, repair, and host transfer
Where it doesn't
- Slicing runs locally rather than through cloud slicing
- No AI features are included
- Advanced capabilities may be more than simple print jobs need
- Slic3r9.0/10 · Free plan
A mature free slicer with multi-material tools, printer control, and OctoPrint integration.
Visit Slic3rFull verdict → - PrusaSlicer7.7/10 · Free plan
A capable local slicer for multi-material preparation, automation, and detailed print control.
Visit PrusaSlicerFull verdict →
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All 3D printing software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update