: Run the .exe setup file and follow the on-screen prompts to complete the installation.
: 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) StarUML 5.0.0 (x86-x64) Activator Free Download
: Visit the official StarUML download page and select the Windows (x86) installer. : Run the
If you wish to remove watermarks and support the developers of the current version, you can purchase a perpetual license: Option 2: StarUML V1 (Open Source & Free)
If you need a version that is entirely free for any purpose without watermarks or trial limitations, you can use the original open-source version (StarUML V1). Note that this version is no longer maintained and lacks the modern features of V5.
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 .