Make UML Shapes available to Visio Online
UML shapes are not available online.
Thank you for providing your feedback. On behalf of Visio team, I am glad to inform that UML shapes are now available in Visio for the web. Users can now model their structural and behavioural UML diagrams using the shapes and functionalities provided by Visio. Please visit our blogs page for more about UML in Visio for the web.
Please try out the UML diagrams in Visio for the web and let us know your feedback.