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The development of Slicer 3 has been discontinued. Slicer 4 is now the recommended platform for both users and developers.

About Slicer3

Slicer3 is a project under active development. See the Status Page for more information on what the software does and the current status of product features. Release notes for Slicer3 are available here

As Slicer3 is changing on a daily basis, some features may not be implemented or will be in various stages of completion. Slicer2.6 is the current fully supported release of Slicer. For information about the current release of Slicer2.6, see Slicer2.6 Getting Started.

There are a couple different ways to obtain Slicer3 to run on your own computer. You can either download a precompiled Slicer3 installer for your platform, or build it yourself from an SVN checkout.

Obtaining a Precompiled Binary

We make three flavors of Slicer3 available for the non-programmer: Stable releases are published every few months. The tutorials refer to those versions of Slicer3. Snapshots are taken approximately every month and nightly builds are compiled every night. We keep about a week's worth of nightly builds on the website.

Pre-compiled stable [1] are available for the following architectures:

  • win32: Windows versions compiled on Windows XP 32 bit
  • darwin-x86: Mac OSX - Darwin x86 Intel
  • darwin-ppc: Mac OSX - Darwin Power PC
  • linux-x86: Linux-x86 - Linux 32-bit
  • linux-x86_64: Linux-x86_64 - Linux 64-bit

Custom built Slicer3 binaries in various states of completion are available in the Snapshots directory. The Snapshots directory contains both Slicer2 and Slicer3 binaries. For the latest build, select the filename that begins with "Slicer3" and has the most recent date. For the beta binary released prior to the January 2007 All Hands Meeting, choose the file with "PreAHM" in the filename. These are all beta builds, so you might find some bugs. If you do, or are having trouble installing Slicer3, please email so we can continue to improve Slicer3.

Installing on Mac OSX

The latest Mac OSX builds are either tar.gz files or .sh files. To install Slicer3, open up an X11 terminal window and copy the binary to the location where you want to install. Change the filename in the examples below to reflect the binary you downloaded.

Be sure to install the X11 package from your Mac OS X install disks. See step-by-step instructions.

Unpacking .tar.gz Files

To unzip and untar the .tar.gz binary, type:

gunzip ./Slicer3-3.0.2007-01-10-Darwin-x86.tar.gz
tar -xvf ./Slicer3-3.0.2007-01-10-Darwin-x86.tar
Unpacking .sh Files

To unpack the .sh binary, type:


You will be prompted to accept the license agreement, and asked where you want to install it. Respond "Y" to both questions.

Running Slicer3

To run Slicer3, cd into the Slicer3-3.0.2007-xx-xx/ directory and type:


Installing on Linux

After downloading the file, move it to where you would like to install Slicer3, and then execute the .sh binary. To do this, simply do the following (replace the filename with the one you downloaded):


If the file doesn't execute, make sure that you have execute permission set. To add execute permission, type:

chmod a+x ./

Some shells have problems executing the script. If so, you might need to specify which shell you want to execute the script, e.g.:

/bin/sh ./

To run Slicer3, cd into the Slicer3-3.0.2007-xx-xx/bin directory and type:


Installing on Windows

After downloading the file, simply double-click on it to start the installation process. To uninstall Slicer3, double-click the Uninstall icon in the Slicer3 directory. To run Slicer, go to Start -> Programs -> Slicer3-3.0.2007.xx-xx -> Slicer

Build Slicer3 Yourself

If you would like to build Slicer3 yourself from an SVN checkout, you can find detailed instructions here.