Grapholite is an easy-to-use and still comprehensive online and desktop solution for designing professional-looking flowcharts, organizational charts, mind maps, Venn charts, database structures, web-site structures, etc. that can be used online and offline, in and out of browser; created diagrams can be stored locally and on the server.
"These would be very helpful for you to create professional looking diagrams, such as flowcharts, sitemaps, organisation charts, wireframes, and many more. If you are designer, developer, office worker, manager, supervisor, student, home user, etc but we hope that these are worth checking for all of you"