Share the love with Horos! 

This Valentine's Day marked Horos' three year anniversay. Watch the video for our big annoucements. You'll love what you hear!

Horos by the Numbers


Horos users


Got Horos questions? We got answers!

Get the most out of Horos with expert support!

Purview is now offering affordable support services for Horos. If you need help with installation, setup, configuration, or troubleshooting, our experts are here for you.

We find that many of the most common questions can be resolved quickly with our expert support, that’s why we offer 15 minute sessions with simple pricing that allows you to only pay for the time you need.


Training & Documetation

Get Trained with the Horos Academy!

Learn How to Properly Manage Medical Images

Learn the basic first steps of importing and exporting medical images and how to use Plugins to enhance your workflow.

Master 2D Image Manipulation and Visualization

Explore annotation tools, learn how to display images, and find ways to get the best out of a 2D image series.

Learn Impressive 3D Functionalities inside Horos

Master 3D tools in Horos, render options, generate  and export movies, and learn how to leverage other assets.

Meet Horos

Horos™ is a free, open-source medical image viewer with over 100,000 users worldwide. Its core technology is based on OsiriX™ and other open source medical imaging libraries. Horos is made available under the GNU Lesser General Public License, Version 3 (LGPL-3.0).


Get Involved with the Horos Community

Discuss Horos in our community forum, contribute code to the project via our Github repository or help us make Horos better by reporting an issue you’ve found.


Latest News

RSS Horos Blog

  • What Exactly is DICOM?
    There are so many different formats out there: JPEG, PNG, PDF, MP3, MOV… the list just goes on and on. While these formats might ring a bell, many people are caught off guard by DICOM. What is it? Plain and simple, DICOM stands for Digital Imaging and COmmunications in Medicine. So, if you are trying […]
  • Can I Connect Horos To The Cloud?
    The answer is YES! You most certainly can integrate Horos (and even OsiriX) to the Cloud.  However, while your viewer can connect to the Cloud, you cannot just pick any Cloud PACS at random. In fact, there are a few conditions and caveats that you need to consider to determine if a particular Cloud service […]
  • How Medical Experts Use Horos For Legal Cases
    They say once you go Mac, you don’t go back. While it may not be applicable in every case, it most certainly is a driving factor to why many Horos users chose Horos in the first place - the are Mac users all the way. At least this was the case for Joseph Scheller…
  • Spotlight: Legal and Educational Uses of Horos in Brazil
    The field of radiology goes way past X-Rays, CTs, and MRIs. In fact, as you probably know, there are numerous specialties out there. From vascular, to pediatric, to nuclear radiology - we have users that fit every profile. However, in this spotlight we will introduce you to a Brazilian user who happens to be a […]
  • Horos at the Université du Québec à Trois Rivières
    Horos is not just for radiologists. We have mentioned this before. The functionalities of Horos are fantastic in an educational setting. In fact, that’s what a university in Canada is using Horos for. With the platform being a free, open source viewer - it is perfect for students and educators. The software can be downloaded […]
  • Does "OPEN SOURCE" Mean That Version You Just Downloaded Is Authentic?
    Have you ever gotten a generic medication in lieu of the name brand counterpart? There is an actual incentive for making this choice. You do this because it’s cheaper. However, what is the incentive for obtaining the generic version of a free open source product? Well, when you consider that if the version is not […]