Free Online DICOM Anonymizer
Instantly remove patient names, IDs, and sensitive metadata from DICOM medical images. All processing happens in your browser — your files never leave your device.
Drop your DICOM file here to anonymize
Remove patient information from DICOM (.dcm) files instantly
100% client-side DICOM anonymization. Your files never leave your browser.
Why Use Our DICOM Anonymizer?
Our free online DICOM anonymizer tool provides a fast, secure, and comprehensive way to de-identify medical images before sharing or publishing.
Complete Privacy Protection
Remove patient names, IDs, birth dates, physician names, institution details, and all identifying DICOM tags from your medical images in one click.
100% Browser-Based Processing
All DICOM anonymization happens entirely in your browser using JavaScript. No files are uploaded to any server, ensuring maximum data security and HIPAA compliance.
All Modalities Supported
Anonymize DICOM files from any imaging modality — CT scans, MRI, X-ray, ultrasound, PET, mammography, and more. Compatible with all standard DICOM formats.
Comprehensive Tag Removal
Our DICOM anonymizer processes over 80 DICOM tags covering patient identity, visit information, study details, procedure data, and UID references.
Selective Anonymization
Review and choose which DICOM tags to anonymize before processing. Keep clinically relevant metadata while removing only personally identifiable information.
Free & No Registration
Use the DICOM anonymizer completely free with no account required. No limitations, no watermarks, no hidden costs — unlimited anonymization for everyone.
DICOM Tags Anonymized
Our DICOM anonymizer processes a comprehensive list of DICOM tags to ensure complete de-identification of medical images while preserving clinically relevant data.
Patient Information
Patient name, ID, birth date, sex, age, address, phone number, insurance information, and other patient-identifying tags.
Visit & Institution
Institution name and address, referring physician, performing physician, operator names, admission details, and other visit-related tags.
Study & Procedure
Accession number, study ID, requesting physician, scheduled procedure details, order information, and other study-identifying tags.
UID References
SOP Instance UID, Study Instance UID, Series Instance UID, and other unique identifiers are replaced with new random UIDs to prevent cross-referencing.
Who Needs DICOM Anonymization?
DICOM anonymization is essential across many medical imaging scenarios where patient privacy must be protected.
Medical Research & Publications
Researchers need to anonymize DICOM files before including medical images in studies, papers, or presentations. Our DICOM anonymizer ensures HIPAA and GDPR compliance when sharing imaging data for research purposes.
Medical Education & Training
Medical schools and training programs use anonymized DICOM images for teaching radiology and imaging interpretation. De-identify patient data while preserving the diagnostic quality of CT, MRI, and X-ray images.
Patient Sharing & Second Opinions
Patients who want to share their medical images online or with other physicians can use DICOM anonymization to protect their personal information before sharing files via email or messaging platforms.
AI & Software Development
Developers building medical imaging AI models or DICOM software need anonymized datasets for training and testing. Our browser-based DICOM anonymizer provides a fast way to de-identify files without complex server-side tools.
How to Anonymize DICOM Files Online
Upload DICOM File
Drag and drop your DICOM (.dcm) file or click to browse. The file is loaded locally in your browser — nothing is uploaded.
Review & Select Tags
Preview all detected patient information and DICOM tags. Select which tags to anonymize or use the default comprehensive profile.
Download Anonymized File
Click to anonymize and download your de-identified DICOM file. The original file remains unchanged on your device.