DN DICOM Viewer + Workstation
MRI, CT, X-Ray, dcm Viewer
Only for Mac
$5.99 · In‑App Purchases
Mac
Donut Viewer (DN Viewer) is a fast, native DICOM and NIfTI viewer for Mac, built for radiologists, residents, researchers, and medical imaging workflows.
Connect to PACS using DICOM or DICOMWeb, open local DICOM and NIfTI studies, preview imaging files directly from Finder, and work with MPR, 3D rendering, measurements, segmentation, and AI-assisted reporting — all in a GPU-accelerated native Mac app.
NATIVE SPEED
Studies open in instant, not minutes. DonutViewer is designed to feel at desktop experience, with fast loading, responsive navigation, and an interface optimized for medical imaging.
Preview supported medical imaging files directly from Finder without opening the full application.
Quickly inspect files while browsing folders and datasets.
Designed for faster review of downloaded, exported, and research imaging data.
WORKSTATION SERVER MODE
Listener and server mode, allows directly receiving pushed studies from consoles and other workstations through DICOM protocol, and also serves the studies over DICOM to other clients. This can be configured.
Supports CFIND CGET and CMOVE operations.
This feature needs additional subscription.
DICOM & NIFTI SUPPORT
Open DICOM studies and series directly on your Mac.
Open and explore NIfTI imaging datasets.
Suitable for radiology, medical imaging research, AI datasets, segmentation workflows, and volumetric imaging.
PACS CONNECTIVITY
Connect directly to PACS servers using DICOM
Connect to compatible DICOMWeb servers.
Browse available studies and open them directly without manually exporting files.
ADVANCED IMAGING TOOLS
Multi-planar reconstruction (MPR) with synchronized crosshairs across all planes.
PET/CT fusion mode with adjustable image blending for combined functional and anatomical visualization.
3D volume ray-cast rendering and surface rendering.
Configurable multi-pane layouts for viewing multiple series side by side.
Save and recall named hanging protocols for different study types.
Window / Level presets for brain, bone, lung, liver, and more, with one-click access or keyboard shortcuts.
Expanded widescreen series preview for quickly navigating studies, particularly useful for MR workflows.
AI-ASSISTED REPORTING
Integrated reporting pane displayed alongside the images.
Speech-to-text optimized for medical and radiology terminology.
Dictate naturally or use short forms and allow AI to expand them into structured report text.
AI-assisted checking for gross unintended inconsistencies within report drafts.
Summarize detailed findings into concise impressions.
MEASUREMENTS & ANNOTATIONS
Image overlay mode for superimposing series to support advanced measurements and calculations, such as TT–TG distance assessment.
Linear ruler measurements.
3-point angle measurements.
Elliptical ROI with mean, minimum, and maximum HU statistics.
Synchronized HU probe across panes within the same study.
Measurements are stored per slice and preserved during the session.
PRIVACY & SECURITY
DICOM image data remains on your device and is not uploaded for image processing.
AI requests are routed through a secure proxy.
Patient-identifying information is not intentionally included in AI prompts.
CLEAN, FAST NATIVE UI
GPU-accelerated image renderer.
Keyboard shortcut reference available within the app.
Adjustable UI zoom for different display sizes and resolutions.
Native macOS workflow with Finder integration.
DonutViewer is intended for educational and research purposes only and is not a certified medical device. It should not be used for clinical diagnosis or patient-care decisions.
Additional subscriptions may be required for DICOM Workstation server mode, AI chat, speech-to-text, and other AI-assisted features.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Privacy Policy: https://donutviewer.com/privacy
Support: contact@tanjitech.in
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
DICOM workstation and listener mode for recieving pushed studies directly from consoles and other workstations.
The developer, TANJ ITECH PRIVATE LIMITED, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TANJ ITECH PRIVATE LIMITED
- Size
- 60.4 MB
- Category
- Medical
- Compatibility
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- Mac
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
- In-App Purchases
Yes
- Speech to Text and AI Rewrite $2.99
- Copyright
- © 2026 TANJ ITECH PRIVATE LIMITED
