DICOM to NIfTI converter (online)
Convert a DICOM series to a NIfTI (.nii.gz) file entirely in your browser. It uses dcm2niix compiled to WebAssembly, so files are never uploaded and DICOM identity tags are dropped in the process.
Drop your scan or report here
DICOM, images (JPG/PNG) or a report PDF — add it all together
- Encrypted in transit & at rest
- You control deletion
- We never sell your data
- Results in minutes, not days
Opens: A folder of DICOM (.dcm) files. · Files are processed in your browser — nothing is uploaded.
How to use it
- 1.Click “Upload DICOM folder” and select your DICOM series.
- 2.It is converted to NIfTI in your browser (dcm2niix WASM), with PHI tags removed.
- 3.Click “Export volume (.nii.gz)” to download the converted, de-identified NIfTI.
FAQ
- Is the DICOM to NIfTI conversion done in the browser?
- Yes. dcm2niix runs as WebAssembly locally, so your DICOM files are not uploaded to any server.
- Does the NIfTI keep patient identity tags?
- No. The conversion produces a NIfTI whose DICOM identity tags have been stripped, so the exported file is de-identified.
- What output format do I get?
- A gzip-compressed NIfTI (.nii.gz), the standard format for neuroimaging and research pipelines.
Want your scan explained in plain language?
The viewer is free — and so is understanding your radiologist’s report. Create an account, upload your scan (de-identified in your browser) and your report, and every finding is mapped onto the images, explained in plain language and scored — no card needed. An independent AI reading of the images is a paid extra. Informational only — not a medical diagnosis.