Mindomo – a software for the visual organization of your own thoughts and ideas. The software allows you to create the different themes of concept maps which are presented by coloured squares and constructed in the form of different tree structures. Mindomo contains a convenient toolbar to create the individual themes or the sub-themes of memory card and connect them with the main theme. Mindomo enables to add to the certain nodes of structure: comments, notes, images, media files and web links which are opened in a the built-in browser. Mindomo supports the synchronization of a mind map with a remote server and this gives an access to it to other users to realise joint changes.