DICOM File Info
Quick look at the most important fields of any DICOM file. Private, free, instant.
Which DICOM fields are shown
DICOM File Info pulls the ~15 most clinically and technically relevant tags from your file and presents them in an easy-to-read card. These are the fields almost every clinician, researcher, or patient needs to verify when handling a DICOM study:
How DICOM File Info works
- Open the file locally by drag-and-drop or file selection — the browser's File API reads the bytes directly from your disk.
- Parse the DICOM header with dicom-parser. We only walk the data set until the 15 key tags are found, which keeps the lookup fast even for multi-GB files.
- Decode each value based on its DICOM Value Representation (PN, DA, TM, DS, IS, US, etc.).
- Render a clean summary card ready for you to copy or share.
Common DICOM File Info use cases
Quick verification of a DICOM file is the right starting point for almost any imaging workflow.
Patients receiving a CD or USB stick from the hospital
Confirm the disc actually contains your study — check patient name, study date, and modality before importing into a viewer.
Doctors verifying a study before second opinion
Quickly check date, modality, body part, and equipment manufacturer to ensure you are looking at the correct exam.
AI engineers spot-checking dataset quality
Sanity-check pixel spacing, slice thickness, manufacturer and modality before feeding files into a training pipeline.
Radiology technologists post-acquisition QA
Verify window/level, dimensions and slice thickness immediately after acquisition without opening a heavyweight viewer.
Telemedicine consults
Identify the study modality and key parameters when receiving an unknown DICOM file from a remote clinic.
Patient education and records management
Build your personal medical archive — note down which study is which without needing PACS access.
Technical specifications
- Input format
- DICOM Part 10 (.dcm, .dicom)
- Tags shown
- ~15 most clinically relevant fields (full list above)
- Multi-frame support
- Yes — number of frames is shown
- Transfer syntaxes
- Implicit / Explicit VR LE, JPEG / JPEG-LS / RLE supported
- Browsers
- Chrome, Edge, Firefox, Safari, Opera (last 2 versions)
- Mobile
- iOS Safari & Android Chrome supported
- Max file size
- Limited only by browser memory (typically up to 4 GB)
- Network
- 100% offline once the page is loaded
Privacy & security
DICOM File Info reads your file entirely in the browser. No tag values, file names, or PHI ever reach our servers.
Browser-only parsing
The DICOM file is read directly from your disk through the browser's File API and parsed in JavaScript.
No analytics on PHI
We never log patient name, MRN, DOB, study description or any tag value.
Works offline
Once the page loads, you can disconnect from the internet and continue using the tool.
Important limitations
- Only 15 most-used tags shown: If you need every tag including private vendor tags, use the full DICOM Metadata Viewer instead.
- Read-only — no anonymization: This tool does not strip or modify any tags. To anonymize, use our DICOM Anonymizer.
- Encrypted DICOM is not supported: Files protected by institutional or vendor encryption must be decrypted with the original software first.
Frequently asked questions
Need to see every tag?
Use the full DICOM Metadata Viewer for the complete list.
Open Full Metadata Viewer