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Starting with , StarUML has transitioned from a user-based model to a device-based licensing model . This shift is designed to simplify license management for administrators and eliminate legal ambiguity.
: A one-time payment allows you to use the purchased version forever without monthly or annual fees.
: Exported diagrams in evaluation mode will contain "Unregistered" or "Pro Only" watermarks. License Key Staruml
A is a unique alphanumeric code provided by MKLabs that unlocks the full professional features of the software. While StarUML was originally an open-source project (Version 1), modern versions (starting from Version 2) are commercial software that require a paid license for continued use. StarUML Licensing Model
: A license is typically priced per device. If you buy a license for one device, it can only be activated on that specific machine. Starting with , StarUML has transitioned from a
Once you receive your key via email or through the StarUML License Manager , follow these steps: Open StarUML on your computer. Navigate to the menu.
: After 30 days, you are legally required to purchase a license to continue using the software. : Exported diagrams in evaluation mode will contain
(Prices are based on standard professional licenses as of the latest documentation) Evaluation Mode and Trial Limits
: StarUML does not currently offer floating licenses for concurrent users; licenses must match the number of devices where the software is installed. Pricing Tiers