Software Alternatives, Accelerators & Startups

Horos VS Weasis

Compare Horos VS Weasis and see what are their differences

Horos logo Horos

A free, open source 64-bit DICOM medical image viewer

Weasis logo Weasis

Weasis is a multipurpose standalone and web-based DICOM viewer.
  • Horos Landing page
    Landing page //
    2023-01-26
  • Weasis Landing page
    Landing page //
    2022-09-12

Weasis is a multipurpose standalone and web-based DICOM viewer with a highly modular architecture. It is a very popular clinical viewer used in healthcare by hospitals, health networks, multicenter research trials, and patients.

Flexible integration with any PACS, RIS, HIS or PHR can be done with the DICOM and DICOMWeb standard interface. It allows high-quality renderings with high performance through the OpenCV library.

It has been designed to meet several expectations of clinical information systems and their future evolution regarding medical imaging: providing web-based access to radiological images, as well as covering a considerable number of DICOM types and offering multimedia capabilities.

Horos features and specs

  • Open Source
    Horos is free and open-source, allowing users to access and modify the source code for customization and integration with other systems.
  • Cross-Platform
    It is designed to work on macOS, providing a native experience for Mac users, and integrates well with the Apple ecosystem.
  • DICOM Support
    Horos supports DICOM imaging format, making it suitable for viewing and analyzing medical images from various imaging devices.
  • Extensive Features
    The software offers a wide range of features, such as 3D reconstructions, image segmentation, and measurement tools, which are essential for medical diagnostics.
  • Community Support
    Being open-source, Horos has a community of users and developers who contribute to its development, providing support and regular updates.

Possible disadvantages of Horos

  • MacOS Limitation
    Horos is specifically designed for macOS, limiting its usability for users who work on Windows or Linux operating systems.
  • Learning Curve
    Users who are not familiar with DICOM or medical imaging software might find it challenging to learn initially due to its comprehensive features.
  • Limited Professional Support
    As an open-source project, it may not offer the same level of professional support or reliability as some commercial medical imaging solutions.
  • Performance Concerns
    Depending on the system specifications and the complexity of the images being processed, some users may experience performance issues or slower image processing speeds.
  • Dependency on Community Updates
    The software largely depends on community contributions for updates and bug fixes, which may not be as frequent or regular as those from a commercial entity.

Weasis features and specs

  • Open Source
    Weasis is an open-source platform, which means it is free to use and can be customized to fit individual or organizational needs. Being open source also allows for transparency and community-driven development.
  • Platform Independence
    Weasis is a cross-platform application that can run on various operating systems, including Windows, macOS, and Linux, making it versatile for different users and IT infrastructures.
  • DICOM Compatibility
    Weasis supports DICOM (Digital Imaging and Communications in Medicine) standards, ensuring compatibility with a wide range of medical imaging equipment and facilitating integration into healthcare systems.
  • Extensible and Flexible
    The software is designed to be extensible, allowing users to develop plugins or add-ons to enhance its functionality, making it more adaptable to specific use cases.
  • Wide Range of Imaging Support
    Weasis supports various types of medical imaging modalities like MRI, CT, PET, and ultrasound, providing broad functionality for medical professionals.

Possible disadvantages of Weasis

  • User Interface Complexity
    The user interface of Weasis may be perceived as complex or unintuitive by some users, especially those new to medical imaging software, requiring a learning curve to navigate effectively.
  • Limited Support Resources
    As an open-source project, Weasis may have limited official support channels. Users often rely on community forums and documentation, which can be less comprehensive compared to commercial options.
  • Performance Limitations
    For processing large volumes of imaging data, Weasis may not match the performance of some commercial alternatives that are optimized for high throughput in clinical environments.
  • Integration Challenges
    While Weasis supports DICOM, integrating it with other proprietary hospital systems may present challenges due to variations in implementation and compatibility issues.

Horos videos

Volux - Tutorial Horos Viewer

More videos:

  • Review - Horos Meetup #1 - 03.06.15
  • Review - Horos AM - Tesis de inversión de Keck Seng Investments. Actualización septiembre 2019

Weasis videos

No Weasis videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Horos and Weasis)
Graphic Design Software
57 57%
43% 43
Digital Drawing And Painting
Image Editing
58 58%
42% 42
Other Bio Tech
55 55%
45% 45

User comments

Share your experience with using Horos and Weasis. For example, how are they different and which one is better?
Log in or Post with

Social recommendations and mentions

Based on our record, Horos should be more popular than Weasis. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Horos mentions (6)

  • Top 5 DICOM Viewers
    2. Horos - platforms: MacOS, top 1 if you use macOS. The same user-friendly interface and very rich toolset (multiplanar reconstruction, maximum intensity projections, volume rendering. It also has tools for manipulating images and making measurements). The Horos project is named after Horus, a deity in ancient Egyptian mythology, son of Isis and Osiris (which is a reference to the name OsiriX, on which Horos is... Source: over 2 years ago
  • Lots of comments (here/elsewhere) mentioning CCW. Just had a new ceph taken. CBCT scan indicated narrow airway (<5 mm). Any casual thoughts before surgical consult next week?
    Seems a little small for a CBCT... Yeah I would ask for the raw DICOM files. Should be able to open that on Mac using Horos. https://horosproject.org/. Source: over 2 years ago
  • Help! Accessing files on UDF Volume for medical results
    I had an MRI done a couple of years ago, and I found some free software that works very well: Https://horosproject.org/. Source: over 2 years ago
  • Reading MRI CD help
    I was right the 1st CD they gave me DID only have 3 images on it. Confirmed after my wife drove the 1hr+ roundtrip and the new one showed masses of images. I used this for free https://horosproject.org Prob will donate now that I know it works and I actually used it. Source: almost 3 years ago
  • Orthopaedic X ray and CT Viewer?
    If you are on a Mac, Horos is good: https://horosproject.org/. Source: about 3 years ago
View more

Weasis mentions (1)

  • Tired of windows (PS: titles are hard)
    Currently I use my laptop mostly for document and sheet editing, internet browsing, PDF reading and DICOM image viewing. I mainly use Radiant and Weasis for the latter. Source: over 2 years ago

What are some alternatives?

When comparing Horos and Weasis, you can also consider the following products

MicroDicom - DICOM viewer. MicroDicom is a free DICOM viewer. Export to the most common picture formats, movie, clipboard. It is equipped with most common tools for manipulation of DICOM images.

RadiAnt DICOM Viewer - PACS-DICOM Viewer. RadiAnt is a PACS-DICOM viewer for medical images designed to provide you with a unique experience.

3D Slicer - Slicer is a community platform created for the purpose of subject specific image analysis and...

AMIDE - AMIDE: a Medical Image Data Analysis Tool

Materialise Mimics - Materialise Mimics is software specially developed by Materialise for medical image processing.

Vesalius3D - Vesalius3D is a toolkit for visualization of patient specific anatomy