If your workstation doesn't have internet access, the DBeaver Documentation provides steps for manual activation via a license file.

This guide explores the various types, pricing structures, and the exclusive features that differentiate them from the free version. 1. DBeaver PRO Licensing Models

The DBeaver Pro license offers several benefits, including:

The DBeaver Pro license is an investment in productivity. For under $200 a year, you are effectively paying less than $0.55 per day to have a single, unified tool that can connect to everything —from a legacy Oracle 11g database to a modern Snowflake data warehouse.