Tl;dr, the tool is called Metadata Editor and released under MIT. As the name suggests, it helps manage metadata for data. Currently supported standard includes:

IPTC

ISO 19139

Dublin Core

DDI-CodeBook v2.5

[–] Ulrich@feddit.org 11 points 1 month ago (1 children)

As the name suggests, it helps manage metadata for data.

I don't mean to be rude but this is like the most generic description possible. What kind of data? What kind of metadata? "Manage" it how?

[–] bitfucker@programming.dev 6 points 1 month ago

For the kind of supported data, one looks at the README and it supports a lot of different kinds of metadata, hence the generic description. A jpeg (or other image) metadata editor cannot edit metadata for geospatial surveys for example. But this application can. And manage it like any other CRUD application works. By providing users a way to enter a new entry, edit it, remove it, query it, all kinds of things really.