DICOM Viewer · Windows

DICOM Viewer for Windows — Open .dcm in Your Browser (No Install)

A free browser-based DICOM viewer that works on any Windows 10 or 11 machine. No download, no install, no admin rights. Drop a .dcm file onto the page and it renders.

Launch the viewer → Other ways to view .dcm

Zero install — no admin needed

Hospital IT usually blocks arbitrary software installs. The Saga viewer is a web page, so the "install" step is just visiting the URL. No MSI, no installer prompt, no elevated permissions. Works on every Chrome, Edge, and Firefox version that shipped with Windows 10 or 11.

Compatible browsers on Windows

  • Chrome 101+ — tested on Chrome 120+ daily.
  • Edge 101+ — Chromium-based Edge behaves identically to Chrome.
  • Firefox 103+ — also supported, slightly different WASM timings.
  • Internet Explorer / Legacy Edge are not supported — modern DICOM codecs need WebAssembly.

What you can do

  • Open .dcm files — drag any file or a DICOMDIR folder onto the page.
  • Inspect tags — built-in tag browser shows the full DICOM tag tree.
  • Measure — length, angle, and circle ROI tools for non-diagnostic review.
  • Capture PNG/JPG — one-click export from the toolbar for reports or slides.
  • Connect to a DICOMweb PACS — WADO-RS endpoint input for direct server access.

Alternatives on Windows

Desktop options if you need diagnostic-level features:

  • MicroDicom — free, Windows-only, rich diagnostic UI.
  • RadiAnt — commercial with free trial; strong MPR/volume rendering.
  • Weasis — cross-platform Java viewer. Works on Windows too.

Run into a production DICOM integration problem beyond file review? Saga's medical imaging team does this for a living — see our integration services.

Learn the DICOM standard

If you're integrating DICOM workflows rather than just viewing files, the Saga DICOM Standard Browser covers every attribute, CIOD, module, SOP class, VR, and transfer syntax from the NEMA PS3 spec — cross-linked to Mirth, FHIR, and cloud vendor support matrices.

Windows-specific FAQ

Does the DICOM viewer work on Windows 10 and 11?

Yes — both are supported. Use Chrome 101+, Edge 101+, or Firefox 103+. All three ship on current Windows 10/11 installs; no extra runtime needed.

Is this better than MicroDicom?

Different use cases. MicroDicom is a free installed Windows viewer with a full diagnostic UI. The Saga browser viewer skips the install and works on any Windows machine (including ones where IT blocks software installs). For quick file review or tag inspection, the browser viewer is faster. For multi-monitor diagnostic reading, MicroDicom has the edge.

Can I open DICOMDIR folders exported from a CD?

Yes. Drag the entire folder (with the DICOMDIR file inside) onto the viewer page. The viewer reads the index locally and loads the referenced .dcm files — nothing uploads to a server.

Does it require admin rights on Windows?

No. The viewer runs in your browser, so hospital IT's "no software installs" policy doesn't block it. Just browse to the page and drop a file in.

Will it work on an older Windows machine?

Anything that can run Chrome 101+ or Edge 101+ works — that covers every supported Windows 10 build and all of Windows 11. Windows 7/8 users should switch to Firefox 103+ if possible, or fall back to a desktop viewer like MicroDicom.