Orthanc Explorer 2 plugin


This plugin provides a new User Interface (UI) to Orthanc. It aims at being more user-friendly, more configurable and more evolutive than the default Orthanc UI which was developed mainly for testing/administrative purpose.


Note that a major difference between the legacy UI and Orthanc Explorer 2 (OE2) is that OE2 works only at the study level, not the patient level. The main page is the study list in which, of course, you can apply a filter to display only the studies of a single patient.

How to get it ?

The source code is available on GitHub.

Binaries are included in:

Release notes are available here.

Depending on the configuration, the plugin can replace the default Orthanc UI you are redirected to when accessing orthanc at http://localhost:8042/. In any case, the new and old UI can coexist:


The plugin must be configured through a configuration file. The minimal configuration to include in your orthanc configuration file is:

"OrthancExplorer2" : {
  "Enable": true,
  "IsDefaultOrthancUI": true

There are many more options that are documented in the default configuration file.

Main features you can configure:

  • Root URL
  • Whether OE2 becomes the default Orthanc UI
  • Configure the side menu
  • Configure the actions available on the resources
  • Configure the columns of the main study list

Advanced features

You may open the OE2 interface directly on a specific study or patient by specifying DICOM Tags directly in the URL. e.g:


By default, OE2 will add a wildcard * at the beginning and at the end of the search text. Therefore, searching for PatientID=1234 will actually search for PatientID=*1234*. If you do not want to have these extra wildcards added, you should use " at the beginning and/or at the end of the search text. Therefore, searching for PatientID="1234" will return only the studies whose PatientID is exactly 1234. These " can also be used in the User Interface search fields.


Main elements of the roadmap are listed hereunder (not in the order of implementation):

  • Multiple language support
  • Mobile friendly
  • Allow edition of DICOM Tags
  • Query-retrieve interface for dicom-web servers & remote DICOM servers
  • Open other viewers from UI (Radiant, Osirix, MedDream, OHIF, ...)

A full list of ideas is stored directly in the repository’s TODO

Bug reports & support

As usual, you can get support and report issues from the Orthanc Users group.

You may also directly introduce bugs or feature requests in GitHub.

The plugin is currently maintained by Alain Mazy from Orthanc.team who, like many of you, enjoys receiving a salary for his work. Feel free to hire him if you need a specific feature or bug fixed.

Donations to Open Collective may also be used to maintain/develop this plugin.