List of top great free online tools:

  1. (unlimited)- Great simple to use tool for creating flowcharts and process digrams. Able to connect with Google Drive to save your files.
  2. Mockingbird (1 project 10 pages 2 users) – Very simple and fast tool for creating mock up of web pages.
  3. Mindmeister – Greta mindmapping program easy to use and looks fun but due to the limits on the free plan I recommend FreeMindwhich is a Java app, watch this great tutorial on how to use FreeMind.