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Weasis is a DICOM viewer available as a desktop application (no need to be installed, can be used on removable devices) or as a web-based application.
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Latest commit ab7da1f @nroduit Increase the tolerance threshold for validating the orthogonality of the
direction of the row and the column vector


The master branch contains Weasis 2. The old branch is 1.2.x.

General information

How to build Weasis

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Weasis 2.0

General Features:

Viewer Features:

  • Display all kinds of DICOM files (including multiframe, enhanced, MPEG-2, MPEG-4, MIME Encapsulation, SR, PR, KOS, ECG and AU)
  • Viewer for common image formats (TIFF, BMP, FlashPiX, GIF, JPEG, PNG, and PNM)
  • Image manipulation (pan, zoom, windowing, presets, rotation, flip, scroll, crosshair, filtering...)
  • Optimal performance for handling large images since there is no need to load the whole image data in memory at once (Uncompressed images, tiled TIFF, tiled jpeg2000 and tiled FlashPiX).
  • Layouts for comparing series or studies
  • Advanced series synchronization options
  • Display Presentation States (GSPS) and Key Object Selection
  • Create key images (Key Object Selection object)
  • Support of Modality LUTs and VOI LUTs (even non-linear)
  • Support of several screens, full-screen mode.
  • Multiplanar reconstructions and Maximum Intensity Projection
  • Display Structured Reports
  • Display cross-lines
  • Measurement and annotation tools
  • SUV measurement
  • Region statistics of pixels (Min, Max, Mean, StDev, Skewness, Kurtosis)
  • Save measurements and annotations
  • Import CD/DVD and local DICOM files
  • Export DICOM with several options (DICOMDIR, ZIP, Anonymized, ISO image file with Weasis, TIFF, JPEG, PNG, HTML...)
  • Magnifier glass
  • Native and DICOM printing
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