You can save your sitemap as a PDF, PNG, or XML file. You may also export your sitemap to HotGloo, which is their UX wireframe and prototyping tool.
The sitemap is available online for 14 days unless re-visited. Every new visit extends the link life for another 14 days. No user account is needed.
GlooMaps is ideal for quickly creating a visual sitemap. It may not have as many features as other tools in this category, but it can be a great fit for you if you just need a simple solution with no collaboration tools.