If you wish to remove watermarks and support the developers of the current version, you can purchase a perpetual license:
: You can use StarUML for free for an unlimited evaluation period . While in this mode, exported diagrams will include a watermark, but all modeling features are typically available for you to practice and design. Option 2: StarUML V1 (Open Source & Free)
The current version of StarUML (including v5.0.0 and newer) is proprietary software. You can download and use it legally without an activator by following these steps: StarUML 5.0.0 (x86-x64) Activator Free Download
: Special pricing is often available for students and educational use. Download and Installation
While there are many websites offering "activators" for StarUML 5.0.0, these tools are often associated with security risks like malware and violate the software's End User License Agreement . If you wish to remove watermarks and support
Instead, you can use the official, modern version of StarUML legally through its trial mode or opt for the older, completely free open-source version. Option 1: Official StarUML (Latest Version)
: Run the staruml-5.0-with-cm.exe installer. This version is licensed under the GPL, meaning it is free to use forever. Official Pricing for Full Features You can download and use it legally without
: Approximately $129.00 for a one-time payment.
