FlowMapp is a UX planning tool for creating visual sitemaps and user flow. FlowMapp is very effective for planning the development of a site, mobile or web app, and it allows all the participants in the process to collaborate with each other, which makes the workflow easier and more convenient.
VisualSitemaps - Autogenerate visual sitemaps in seconds.
draw.io - Online diagramming application
Rarchy - Plan your next website with Rarchy using our easy visual sitemaps & website planning tool. Collaborate in real-time with your whole team. Try us for free today!
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.