3D Slicer is a free, open source software for visualization, processing, segmentation, registration, and analysis of medical, biomedical, and other 3D images and meshes; and planning and navigating image-guided procedures.
Publisher’s description
What is Slicer?
Slicer is a free 3d & cad program for Windows from slicer.org. It ranks 12th by popularity among 3d & cad in this catalogue. It is written in C++.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). The main installer is 268.8 MB. It can be installed for the current user only, without administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 5.12.4, released on September 9, 2026. 10 versions are listed since January 26, 2024, each with links to its own installer files. That is about 3.8 releases a year.
Popularity and file types
The Chocolatey package has been downloaded 17,682 times. The source code on GitHub (Slicer/Slicer) has 2,677 stars. On Windows it registers 3 file types, including .mrb, .mrml and .xcat. Similar programs include PrusaSlicer, Ultimaker Cura and MeshLab.
Project description on GitHub: “Multi-platform, free open source software for visualization and image computing.”
Pros / Cons
Pros
- Free to use
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: Slicer is a free 3d & cad tool for 64-bit PCs. Administrators can deploy it unattended.
Is Slicer safe to download?
- The file is served by download.slicer.org, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
20F68D94EC00F9957269484564E7E58AA97B95816F825D4B1D912450C24CC7F6· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 10 versions ›10 versions over 3 years · about 3.8 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 5.12.4Latest | September 9, 2026 | 268.8 MB | 64-bit EXE (NSIS) |
| 5.12.3 | July 23, 2026 | 268.8 MB | 64-bit EXE (NSIS) |
| 5.12.2 | July 15, 2026 | 268.9 MB | 64-bit EXE (NSIS) |
| 5.12.1 | July 9, 2026 | 268.8 MB | 64-bit EXE (NSIS) |
| 5.12.0 | June 24, 2026 | 268.8 MB | 64-bit EXE (NSIS) |
| 5.10.0 | November 10, 2025 | 251.4 MB | 64-bit EXE (NSIS) |
| 5.8.1 | March 3, 2025 | 242.3 MB | 64-bit EXE (NSIS) |
| 5.8.0 | January 24, 2025 | 242.3 MB | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id Kitware.Slicer -echoco install 3dslicer -y6aa1db04ce9de556d30112bb /SRelated guide: How to use winget: install and update apps
Also for other systems
brew install --cask slicerInformation
- Publisher
- slicer.org
- Category
- 3D & CAD
- Licence
- Freeware
- Price
- Free
- Source code
- github.com/Slicer/Slicer
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 5.12.4
- Released
- September 9, 2026
- Added to the catalogue
- January 26, 2024
- Versions listed
- 10
- Updates / year
- 3.8
- Chocolatey downloads
- 17,682
- GitHub stars
- 2,677
- GitHub forks
- 799
- Website
- download.slicer.org
- winget ID
- Kitware.Slicer
- Chocolatey package
- 3dslicer
File types it opens (3)
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Slicer
See all ›-
Open source82.3K ↓ -
Open source197.7K ↓ -
Open source36.1K ↓ -
Open source9K ↓ -
Bambu Studio02.08.02.61Bambu Studio is a cutting-edge, feature-rich slicing software. It contains project-based workflows, systematically optimized slicing algorithms, and an easy-to-use graphic interface, bringing users an incredibly smooth printing experience.Open source35K ↓ -
Open source30.1K ↓ -
Open source640K ↓ -
OpenModelica1.26.3OpenModelica is an open-source Modelica-based modeling and simulation environment intended for industrial and academic usage.Open source8.4K ↓
Frequently asked questions
Is Slicer free?
Yes. Slicer is free to use.
Is Slicer safe to download?
The download comes from download.slicer.org, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Slicer with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Slicer be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Slicer run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Slicer?
The versions page lists all 10 versions with links to their official installer files, back to January 26, 2024.
Can I use Slicer without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Slicer?
PrusaSlicer, Ultimaker Cura, MeshLab, OpenToonz and Bambu Studio. The alternatives page compares them.
