Katalon Studio Free version does support offline activation. Currently, offline activation is a premium feature exclusive to paid Katalon Studio Enterprise (KSE) annual subscriptions. Katalon Community Key Feature Limitations for Free Users Online Mandate
If the restriction is due to a firewall, request your network administrator to whitelist the domain katalon.com . This allows the standard, free online activation to operate normally. katalon offline activation free updated
If you are looking for "free updated" offline activation, it is important to understand the current licensing model to avoid potential security risks from unofficial "cracked" versions. Katalon Studio Free version does support offline activation