Done — file downloaded

Anonymizing DICOMs...

Processing files and stripping identifiers...

DICOM Anonymizer

Remove patient and institution identifiers from DICOM files. Upload individual DICOMs or a ZIP with folders — download the anonymized archive in the same structure.

Files are processed on the server and immediately discarded — nothing is stored. For highly sensitive data consider an offline solution.

Drag & drop DICOM files or a ZIP archive, or browse

Accepts .dcm files and .zip folders — folder structure is preserved

Anonymization options

What gets anonymized?

Removed / cleared
PatientName PatientBirthDate PatientAge PatientAddress PatientTelephoneNumbers PatientSex* InstitutionName InstitutionAddress ReferringPhysicianName OperatorsName PerformingPhysicianName AccessionNumber StudyDate* StudyTime*
Replaced with new values
PatientName → ANONYMOUS PatientID → SHA-256 hash StudyInstanceUID → new UID SeriesInstanceUID → new UID SOPInstanceUID → new UID FrameOfReferenceUID → new UID
Kept unchanged
Modality StudyDescription SeriesDescription BodyPartExamined PixelData ImageType Rows Columns KVP SliceThickness

* Controlled by options above. UIDs are remapped consistently — study/series relationships between files are preserved.

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