Slic3r

Plans and prices

Every plan, in full

On the record

Advanced features

Features include multiple extruders, variable layer heights, sequential printing, honeycomb infill, mesh cutting, modifiers, and automatic support generation.slic3r.org · read 9 Oct 2026

Audience

The project says Slic3r is mostly used by advanced users, while novice users often need only a few configuration options.slic3r.org · read 9 Oct 2026

Command line

The command-line tool supports batch G-code generation, SVG slice export, model cutting, transformation, repair, and format conversion.slic3r.org · read 9 Oct 2026

Downloads

The download page offers precompiled official and development packages for macOS, Windows, and Linux; Linux users need the freeglut package.slic3r.org · read 9 Oct 2026

Integration

Slic3r can send jobs to OctoPrint.slic3r.org · read 9 Oct 2026

Library

Libslic3r is a C++ library with reusable components and a granular API for building applications on Slic3r algorithms.slic3r.org · read 9 Oct 2026

License

Slic3r is licensed under the GNU Affero General Public License version 3.slic3r.org · read 9 Oct 2026

Machine compatibility

The project says it supports known G-code dialects including Marlin, Repetier, Mach3, LinuxCNC, Machinekit, Smoothie, Makerware, and Sailfish.slic3r.org · read 9 Oct 2026

Model formats

It supports conversion between STL, OBJ, AMF, and POV formats and can export SVG slices.slic3r.org · read 9 Oct 2026

Origin

The Slic3r project began in 2011 within the RepRap community and describes itself as a non-profit, independent community project.slic3r.org · read 9 Oct 2026

Printer control

A built-in USB/serial host controller supports multiple simultaneous printers, each with a spool queue.slic3r.org · read 9 Oct 2026

Printer types

It generates G-code for FFF/FDM printers and includes a built-in projector and host for DLP printers.slic3r.org · read 9 Oct 2026

Purpose

Slic3r converts 3D models into printer instructions by slicing models into layers, generating toolpaths, and calculating extrusion amounts.slic3r.org · read 9 Oct 2026

Support

The project directs users to GitHub discussions and its IRC channel for community participation and support.slic3r.org · read 9 Oct 2026

Alternatives to Slic3r

PC Polar CloudAndroidiPhone & iPad+5 A AstroPrintAndroidiPhone & iPad+6 S SimplyPrintAndroidiPhone & iPad+3 P PrusaSlicerAndroidiPhone & iPad+4 O OctoPrintAndroidWeb+5 3 3DPrinterOSAndroidiPhone & iPad+6 CP Craftware ProWindowsMac+1 K KISSlicerWindowsMac+1

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