Since Horos is unavailable on Windows, these free or open-source programs are the most highly recommended for PC users:

However, Windows users still have excellent options. You can either use a cross-platform alternative that provides similar 3D and 2D capabilities or opt for a cloud-based solution that works in any browser. Top Free DICOM Viewer Alternatives for Windows

: While primarily a paid product, RadiAnt often offers a limited-time free trial for Windows. It is exceptionally fast and supports 3D volume rendering and image fusion.

: A professional-grade, open-source platform designed for medical image analysis and 3D visualization. It is more complex than a standard viewer but offers powerful research tools for Windows users. Why Horos is Mac-Only

: Often cited as the best cross-platform alternative, Weasis is free, open-source, and works on Windows, Linux, and Mac. It supports advanced features like Multiplanar Reconstruction (MPR) and can integrate with existing hospital systems.

If you are looking for a , it is important to clarify a key detail: Horos is built exclusively for macOS . Despite its popularity as an open-source medical imaging powerhouse, the Horos Project does not offer a native Windows version.

: A lightweight, popular viewer for Windows that is free for non-commercial use. It is known for its user-friendly interface and portability (it can run directly from a zip file without installation).