Orthanc
The free and open-source, lightweight DICOM server.
Overview
Orthanc is an open-source DICOM server that can transform any computer into a mini-PACS. It is designed to be lightweight and highly extensible through a plugin architecture and a REST API. This makes it a favorite among researchers, developers, and small clinics for building custom medical imaging workflows. While it has a basic web viewer, its true power lies in its backend capabilities and integration potential.
✨ Key Features
- Lightweight DICOM server (mini-PACS)
- REST API for automation and integration
- Extensible via plugins (e.g., for viewers, cloud storage)
- Cross-platform (Windows, macOS, Linux, Docker)
- Scriptable with Python or Lua
- DICOMweb support
🎯 Key Differentiators
- Modern REST API for easy integration
- Lightweight and easy to deploy
- Highly extensible with plugins and scripts
Unique Value: Provides a free, lightweight, and highly programmable DICOM server that empowers developers and researchers to build custom medical imaging applications.
🎯 Use Cases (5)
✅ Best For
- Backend for AI research projects
- Lightweight departmental archive
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Large-scale enterprise PACS without significant custom development
- Users needing an out-of-the-box diagnostic viewer with advanced features
🏆 Alternatives
Much more modern and easier to integrate with than older open-source PACS like dcm4chee, thanks to its REST API. It is a server, not just a viewer.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
🛟 Support Options
- ✓ Email Support
- ✓ Dedicated Support (Orthanc Services tier)
💰 Pricing
Free tier: The software is completely free and open source.
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