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Weasis 4.8.0

Free medical DICOM viewer

filecart Linux Updated Oct 31, 2026
Download 55.47 MB · weasis_4.8.0-1_amd64.deb
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Weasis 4.7.3 screenshot

About Weasis

An open-source DICOM viewer for standalone and web use, built for medical image
visualization in PACS and DICOM workflows — from routine reading to AI-assisted
review and quantitative imaging. It is used by hospitals, health networks,
multicenter research trials, and patients.

General features:

• Open source under the EPL 2.0 or Apache 2.0 license

• Integrates with PACS, VNA, RIS, HIS, or EHR

• Desktop builds for Windows, macOS, and Linux; web launch via the weasis:// protocol

• Responsive UI for high-DPI screens, with support for over 20 languages

• Server- and client-side configuration with multi-level overrides

• API for custom plug-ins; embeddable viewer for CD/DVD or portable media

• The Dicomizer module converts images, videos, PDFs, and STL meshes into DICOM

Connectivity and interoperability:

• Classic DIMSE: Query/Retrieve (C-FIND, C-GET, C-MOVE) and Store (C-STORE)

• DICOMweb (QIDO-RS, WADO-RS, STOW-RS) and WADO-URI for legacy PACS

• Authentication via Basic, OAuth 2.0, and OpenID Connect, working with Keycloak, Google Cloud Healthcare, or any OIDC provider

• Send to PACS or DICOMweb, or export locally as DICOMDIR ZIP, ISO with embedded viewer, or common image and video formats

Viewer features:

• Broad data-type support, including multi-frame, Enhanced CT/MR/US volumes, SR, PR, KOS, SEG, RT, ECG, and Parametric Map, with the common DICOM codecs

• Multi-monitor viewing with per-monitor calibration, HiDPI, and full-screen; customizable mouse and keyboard controls

• Advanced imaging: oblique MPR, MIP, 3D volume rendering with segmentation overlay, 4D/multi-phase splitting, and side-by-side comparison layouts

• Measurement and annotation, including length, area, angle (Cobb), pixel-region statistics, histograms, and SUV for PET/nuclear imaging

• Dedicated viewers for ECG waveforms, structured reports (SR), audio (AU), and radiotherapy (RT structure set, dose, DVH)

License: EPL-2.0 OR Apache-2.0
Release info Update on Oct 31, 2026
Release notes Full Changelog

Implemented enhancements:
• Add a "fuzzy search \(Person Name\)" option to the DICOMweb search \#948
• Fusion: adjust the PET scale maximum independently of the CT window \#946
• Binary DICOM SEG overlay does not align with source-image voxels in 2D \#938
• DICOM SR: render TABLE content items \#933
• SR: draw TCOORD items on the referenced waveforms \#932
• Refactor SR rendering: consolidate SCOORD/SCOORD3D handling, add layer visibility toggling, and enhance overlay management \#931
• Add export functionality for screenshots, animations, and recordings; enhance capture actions and related UI components \#930
• Replace hardcoded presets with structured JSON-based configuration, extend LUT shapes, and improve WL slider interactions \#929
• Implement identity masking features: add IdentityMask class, integrate masking profiles, and enhance redaction capabilities across various components \#928
• Add cinematic rendering features: implement denoise pass, cinematic lighting options, and enhance shader management \#927
• Color maps: JSON model for 2D, fusion and 3D, shared editor, DICOM Color Palette import/export \#926
• Reverse scroll direction in MPR mode axial view \#921
• Modernize the Draw & Measure tools: new tools, tool profiles, plugin registry and clearer display \#920
• Replace the Scribejava OAuth2 service with a custom implementation \#914
• Improve system resources information with OSHI \#913
• Replace usbdrivedetector with OSHI for removable-drive detection \#912
• Secure and robust DICOMDIR file resolution \#911
• Hanging-protocol style viewport layouts \(stack / tiled\) with synchronization across tiled views \#910
• Add support for better caching DICOM files from network shares and optical media \#909
• Add keyboard shortcuts for measurements \#856
• Click-and-drag to draw ellipse \(and rectangle\) to measure \#782
• Bidirectional ruler/measurement tool for oncology response assessments \#749
• The cardiothoracic ratio \(CTR\) Function…
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