Terms of Use

Last updated: August 14, 2026

By using umldiagram.app (UML Diagram Studio), you agree to these terms. The site provides a free UML diagram tool in the browser, plus tutorials and examples.

The service

The editor, gallery, and blog are provided as-is, without a paid subscription. Features, uptime, and AI output can change or be unavailable.

Your diagrams

You keep rights to diagrams you create. You are responsible for the content you generate, including that it does not infringe others' rights.

Acceptable use

Do not abuse the AI API, attempt to disrupt the site, or use the tool for unlawful activity. We may rate-limit or block abuse.

Liability

Diagrams and AI-generated code are aids for design and documentation. Review them before using them in production systems. We are not liable for damages arising from use of the site.

Contact

Questions: contact or see our privacy policy.