If your "offline" status is actually just a restrictive corporate proxy (and not a total air-gap), you don't necessarily need offline activation. You can configure Katalon to communicate through your company's proxy. This allows you to use the without needing a paid offline license. Step-by-Step: The Best Way to Activate Offline (Official)
Searching for reveals a common need: testers want security and compliance without paying for a license. katalon offline activation free best
If you have a valid license (Enterprise or trial), this is the standard, most reliable method to activate Katalon without an internet connection on the executing machine. If your "offline" status is actually just a
The free version of Katalon Studio has some limitations: this is the standard