What to run
Open Barcode Generator. It stays in the browser.
How to read the result
The image is Code 128 of the string you typed.
It is not a product lookup.
Characters outside the code set will fail or be rejected; read the page error rather than shipping a blank.
What to open next
Open UUID Generator if you need the id first. It stays in the browser.
MIME Type Lookup is irrelevant here.