License — Key Staruml

Access hundreds of user-contributed and official extensions to add support for SysML, ERD (Entity-Relationship Diagrams), C#, Python, Java, and PHP code generation.

For users looking for a completely free alternative, the original remains open-source and free to use, though it is no longer maintained or compatible with modern high-resolution displays. Help Center - StarUML

Usually provides a license valid for a specific major version (e.g., StarUML V7) for a single user/device. 2. Commercial License License Key Staruml

License keys are version-specific. A key for V6 or lower will not work for V7 or higher . Policy: A 14-day refund period is available after purchase. Activation Process

This comprehensive guide covers everything you need to know about StarUML license keys, pricing models, and how to activate your software securely. Do You Need a StarUML License Key? Policy: A 14-day refund period is available after purchase

Complete the checkout process via their secure payment gateway (typically handled by FastSpring). Step 2: Receive Your Credentials

Your purchase is perpetual for that major version. You can use that specific version forever, but upgrading to a new major version (e.g., from V6 to V7) usually requires an additional fee. 4. How to Activate Your License Key ERD (Entity-Relationship Diagrams)

The search for a is a dead end in 2025. The software has moved to a token-based, machine-locked system. While you might find a YouTube tutorial showing how to patch the app.asar file, these methods break with every update and compromise your security.

$99 USD for an Individual License (one-time purchase, not a subscription). Student discounts are often available via GitHub Student Developer Pack.