MAC · WINDOWS · RESEARCH & EDUCATION
View and compare, reconstruct in MPR and 3D, measure, edit tags, subtract angiography, export and send studies, all on your own Mac or Windows computer, with no server to set up and no images sent to us. Professional adds Denoise for CT, MR and X-ray, plus filter chains and quantitative analysis. Every computer starts with 14 days of Professional, from its first launch.
No card · internet needed to start the trial · then $10 or $45 a month per computer
Real app capture: one CT in the MPR 2×2 layout. Dragging the crosshair in the coronal view moves the axial and sagittal planes with it; a drag in the 3D view turns the volume. On small screens the clip shows the axial plane.
Real app capture on a CT series: Denoise on, off and on again, then scrolling through denoised slices. The wait for the first run is cut from the clip.
Real app capture: draw with the 3D scalpel, cut inside, turn the volume, then Restore it and pick the MIP preset.
Real app capture: a cerebral run playing at the 4 frames per second the file declares; part-way through, the DSA button switches on mask subtraction.
PROFESSIONAL · INCLUDED IN THE 14-DAY TRIAL
Denoise for CT, MR and X-ray, plus filter chains and quantitative analysis, on your own computer.
01Denoise
Click Denoise to reduce noise across a CT, MR or X-ray series, starting with the image on screen. Click again for the original. Your DICOM files are never changed.
Two captures from OmniDICOM of the same CT slice at window 400 / level 40 (W400/L40): Denoise off and on. The slider is part of this web page, built from the two captures; in the app you click Denoise again or press and hold Hold to compare. Images are 8-bit display captures, not HU data.
In the 2D view, measurements, ROI statistics, histograms, profiles and exports use the denoised image, and Statistics, Histogram, the profiles and Particles label their results “denoised image”. MPR, 3D, time-intensity curves and slice projections use the original pixels.
For research and education only, not for diagnosis. This applies equally to denoised and processed images.
Download both captures (PNG): Denoise off · Denoise on
Sample: CT Colonography (ACRIN 6664), TCIA, CC BY 3.0 — credits
Denoise is noise reduction, not image generation: it estimates the noise in each slice or X-ray image and removes it.
02Process
Chain up to eight filters with typed values, save presets, apply them to selected series, and hold to compare without Denoise and filters.
Apply shows the result on screen; Save & Apply also saves it for the series on this computer. Filters change the displayed image, not the values you measure: measurements read the stored values, or the denoised values while Denoise is on.
03Analyze
ROI statistics, histograms, line and Z profiles, time-intensity curves, particles and the ROI manager. Copy the data or save CSV.
A time-intensity curve compares two or more series as timepoints. Within one run, Z profile follows a region across its frames.
Length, ellipse and polygon drawing tools are included in Basic.
Professional is $45 a month or $449 a year per computer after the trial.
NEW IN 1.1.2
Make a de-identified copy, save a series as a NIfTI volume, type text on the image and leave a comment on a series. All four work in Basic, Professional and the 14-day trial.
01 De-identify Basic
Select studies or series in the Local archive and choose De-identify. OmniDICOM saves a copy under the DICOM PS3.15 Basic Application Level Confidentiality Profile, with new UIDs, in a new folder. Your original files are not changed.
Text burned into the images is not removed. Only the DICOM header is changed: names, dates or ID numbers drawn into the pixels, or stored inside compressed image data such as JPEG comments, stay in the copy. Faces can be rebuilt in 3D from head CT and MR. Faces are not removed. Open the copy and check every image before you share it.
Basic, Professional and the trial. Series marked as having text in the image, ultrasound, screen captures and photos are left out unless you include them; structured reports (SR), PDFs and other documents, and video are not copied. Whether the copy counts as de-identified under the rules that apply to you is for you to decide. More in the manual
02 NIfTI Basic
File ▸ Export as NIfTI… writes each series as one .nii.gz volume in its original values (HU for CT), with its position and orientation in patient coordinates, for research tools that read NIfTI.
Basic, Professional and the trial. Needs an original series of 3 or more parallel slices; viewer reconstructions, colour images and tilted-gantry series are not saved. More in the manual
03 Text Basic
Press T, click where the text should start and type. Pick a size and a colour, add a background box, or show the text on every image of the series.
2D images only. As with every picture export, pictures exported during the trial or without a licence carry the watermark. More in the manual
04 Comments Basic
Press N, or click the bubble on a series thumbnail, and write a note. A cine run can have its own.
Up to 1,000 characters. Hidden while patient data is hidden. More in the manual
Already using OmniDICOM? Choose Update now when the app offers 1.1.2. Microsoft Store copies update through the Store.
THE TOOLKIT
The same toolkit on both platforms. Basic covers the viewer; Pro adds advanced processing and analysis.
DICOMDIR, discs, folders and multi-frame studies. Search the local archive; remove a series from the list or choose to delete its files.
Window presets, zoom, pan, side-by-side layouts and synchronized navigation. Play cine sequences and adjust playback speed.
Search tags by name or value. Inspect tag, name and value together; double-click editable values and save changes across the series.
Measure distances and angles, draw regions and inspect their statistics. Manually calibrate studies without usable pixel spacing.
Explore axial, coronal and sagittal planes, MIP and volume rendering. Cut through a volume with the scalpel and restore the view.
Subtract a mask frame from angiographic sequences. Choose the mask and use Magic Mask to help align it.
Find, retrieve, send and receive studies. C-FIND, C-MOVE, C-GET, C-STORE, QIDO-RS and WADO-RS support connect your research workflow.
Export DICOM files, PNG, JPEG and BMP images, or MP4 and WMV movies. Choose the current image, a series or all open series.
Overlay another series with adjustable colour mapping and opacity. Compare PET and CT with regional measurements of the overlay.
Open DICOM structured reports, encapsulated documents and video objects from your study.
Denoise CT series in one click, computed on your own computer. Build a filter chain: sharpening, edge-preserving smoothing, background subtraction and contrast adjustment. Save a derived series with new instance UIDs.
Explore histograms, intensity profiles and time-intensity curves. Export numerical results as CSV for further research.
BUILT WITH RESEARCHERS
If your research needs something OmniDICOM does not do yet, write to us. One person reads every request, and the ones that fit the product get built. Requests from Professional subscribers go first.
contact@omnidicom.com · We aim to answer within one business day.
In the app: Help ▸ Request a Feature…
DICOM METADATA · BASIC
Fix an incorrect patient ID, clarify a series description or inspect acquisition details without leaving the viewer.
Filter the metadata list and inspect Tag, Name and Value together.
Double-click an editable value to correct the information.
Save Changes writes the edited tags to every file in the series in place. It does not create a separate copy: keep a backup if you need the original metadata. Sequences, pixel and overlay data are read-only.
YOUR WORKSPACE
Images are opened, denoised and processed on your computer; no image is uploaded to us.
Image viewing and processing happen locally. Studies are transferred only to destinations you choose, such as your PACS. Licence activation and validation use an internet connection. The app also checks omnidicom.com for a newer version, sending only its version number, and you can turn that check off in Settings. An update is downloaded from our GitHub release page only when you choose Update now.
Read our data-handling policy →PLANS
Each computer gets 14 days of Professional from its first launch. Then choose Basic or Professional, or keep viewing in five-minute sessions.
| 14-day trial Free, no card | After the trial No licence |
Basic
$10 a month or $99 a year |
Included in your 14-day trial
Professional
$45 a month or $449 a year |
|
|---|---|---|---|---|
| Viewer: 2D, cine, MPR and 3D with the scalpel, DSA and fusion, measurements, text and comments, metadata editing, archive and PACS | Included | Five-minute sessions | Included | Included |
| Picture and movie exports, clipboard copies, processed DICOM copies | Watermarked | Watermarked | No watermark | No watermark |
| STL surface models | Not included | Not included | Included | Included |
| De-identified copies and NIfTI volumes | Included | Not included | Included | Included |
| Denoise for CT, MR and X-ray (Mac: macOS 14 or later) | Included | Not included | Not included | Included |
| Process: chains of up to eight filters, presets, Hold to compare | Included | Not included | Not included | Included |
| Analyze: ROI statistics, histograms, profiles, TIC, particles, CSV | Included | Not included | Not included | Included |
| Start 14-day trial | Keeps opening studies | Buy yearly · Basic or monthly · Basic | Buy yearly · Professional or monthly · Professional |
Already on Basic? Upgrade from the app, and pay with the email address you bought Basic with. When checkout shows “How the upgrade works”, Professional is charged in full, then we cancel Basic and refund its unused part; your key stays the same. Buying Pro from these plans instead starts a separate subscription, and Basic keeps renewing until you cancel it. How upgrades work
Academic programme: one free year for eligible published research. Team discounts: 15% for 5+ licences, 25% for 10+. Contact us
GET STARTED
Free download, no card. The trial starts the first time you open OmniDICOM, so connect to the internet once on that first launch.
OmniDICOM runs on Mac and Windows computers. Open this page on your computer to download it.
1.1.3 · macOS 13+ Apple silicon (.pkg) · Windows 10/11 64-bit (.exe)
Denoise needs macOS 14 or later on a Mac. Mac: open the signed, notarized PKG and follow Continue → Install. Windows: open the signed EXE and follow the installer.
After 14 days OmniDICOM still opens studies, in five-minute sessions. Pictures and movies exported during the trial or without a licence carry a watermark, and STL export needs a paid licence. De-identified copies and NIfTI volumes work during the trial and need a paid licence after it. Saved Denoise and Process settings are kept and apply again while Professional is active.
Compare plans ↑Edge and SmartScreen warn about any new installer that few people have downloaded yet, even a signed one. The OmniDICOM installer is Authenticode-signed by its publisher, Youngrak Choi.
Download OmniDICOM only through the buttons on omnidicom.com; they deliver the file from our official GitHub release. If there is no Digital Signatures tab, the signature is not OK, or it names another publisher, do not run the file. Step-by-step Windows installation →
macOS 1a80759e2a88879fc97d5079c58bb61059b7cbd5b5558edbdb49c42233e72942
Windows 106b1e2e10aed8008528ee8f337f03aafc2975a3a6311fd68c6927a47390c936
QUESTIONS
OmniDICOM keeps opening studies, in five-minute sessions; restarting gives another five. Exports carry a watermark and STL export needs a paid licence. De-identified copies and NIfTI volumes, which work during the trial, need a paid licence after it. Basic ($10 a month) lifts those limits for the whole viewer; Professional ($45 a month) adds Denoise, Process and Analyze.
No. Denoise runs on your own computer and no image is uploaded. Your DICOM files are never changed: Denoise can be saved for the series on this computer, like other processing, and you can turn it off at any time.
The viewer opens CT, MR, angiography, ultrasound and other supported DICOM studies on Apple silicon Macs with macOS 13 or later and on 64-bit Windows 10 and 11. Denoise works on CT and MR series and on X-ray images (CR, DX, DR and RG), not on mammography; on a Mac it needs macOS 14 or later, and on Windows it uses the graphics card through DirectML where available, otherwise the processor.
No. OmniDICOM is for research and education only. It is not a medical device and is not intended for diagnosis, primary interpretation or clinical decision-making. This applies equally to denoised and processed images.
CT and MR series and X-ray images (CR, DX, DR and RG). For any other modality, mammography included, the Denoise button is greyed out and says so. Labelling workflows are planned; they are not part of the current plans.
The application interface and its built-in manual are in English. This site has Korean pages for the homepage and the how-to guides.
GUIDES
Reduce noise across a CT series on your own computer, compare it with the original and see what reads the denoised values.
Check Mac compatibility, open CT and MRI studies, and explore MPR, 3D and editable metadata.
Play dynamic sequences, inspect individual frames, adjust speed and export video.
Review angiographic runs with cine playback, mask subtraction and pixel-shift tools.
From the Mac installer to your first study: open a folder, choose a series, browse its images.
Find a field, change its value and save it across a series.
Export a still for a presentation or a sequence as a movie, with the scope and format chosen explicitly.
Every window, tool and setting, including Denoise, Process and Analyze.
Step-by-step guides with screenshots of the app.
All screenshots and clips are captures of the OmniDICOM app. Pointers are drawn in, waits are cut, and 3D turns are shown at 15 frames per second, which is not a rendering speed.
CT Colonography (ACRIN 6664): Smith K, et al. (2015), The Cancer Imaging Archive, doi:10.7937/K9/TCIA.2015.NWTESAY1, CC BY 3.0, modified.
LDCT-and-Projection-data: McCollough C, et al. (2020), The Cancer Imaging Archive, doi:10.7937/9npb-2637, CC BY 4.0, modified; NIBIB grants EB017095 and EB017185.
FDG-PET-CT-Lesions: Gatidis S, Kuestner T (2022), The Cancer Imaging Archive, doi:10.7937/gkr0-xv29, CC BY 4.0, modified.
COVID-19-NY-SBU: Saltz J, et al. (2021), The Cancer Imaging Archive, doi:10.7937/TCIA.BBAG-2923, CC BY 4.0, modified.
CMB-MML: Cancer Moonshot Biobank (2022), The Cancer Imaging Archive, doi:10.7937/szkb-sw39, CC BY 4.0, study list rows only.
VAREPOP-APOLLO: Research for Precision Oncology Program and APOLLO Research Network (2024), The Cancer Imaging Archive, doi:10.7937/ghkn-md15, CC BY 4.0, study list rows only.
Angiography: OmniDICOM’s own demonstration runs; names, IDs and dates are demo values.
OmniDICOM is not a medical device and is not intended for diagnosis, primary interpretation or clinical decision-making. Processing creates derived images; metadata editing and explicit file deletion can modify original files.
OmniDICOM
