Thank you for the kind words! We appreciate it, and it is nice to hear that people find it to be useful.
We just added a new feature yesterday---it is a new tab that allows you to analyze a DICOM file within the browser, see the values it contains, and easily cross check the tags with the standard. Any feedback would be welcome.
Here is a screenshot of the DICOM file analysis feature in action:
https://innolitics.com/img/dicom-file-upload.png
Edit: make it clear the files are not uploaded to any server, but stay within the browser