Slic3r Manual

Slic3r can be downloaded directly from: or

Pre-compiled packages are available for Windows, Mac OS X and Linux. Windows users can choose between 32 and 64 bit versions to match their system.

Development (pre-release) builds are available at


The source code is available via GitHub: For more details on building from source see § below.



Unzip the downloaded zip file to a folder of your choosing, there is no installer script. The resulting folder contains three executables:

The folder also contains a libexec directory, which contains the rest of the important support files for Slic3r. Do not remove this folder or move it away from the exe files or Slic3r will not work!

The zip file may then be deleted.

Mac OS X

Double-click the downloaded dmg file, an instance of Finder should open together with an icon of the Slic3r program. Navigate to the Applications directory and drag and drop the Slic3r icon into it. The dmg file may then be deleted.


Extract the archive to a folder of your choosing. Start Slic3r directly by running the Slic3r shell script, found in the root directory.

The archive file may then be deleted.

Building from source

For those wishing to live on the cutting edge, Slic3r can be compiled from the latest source files found on GitHub1.

Up-to-date instructions for compiling and running from source can be found on the Slic3r wiki.