TiddlyMap - An interactive concept- and mind-mapping plugin for the personal note-taking software TiddlyWiki based on the Vis.js library. It's free and open-source!

Mind Map by RealtimeBoard - More than your average mind map

Wisdomap - Wisdomap Medicine is a study aid that helps medical students create differential diagnoses and suitable management plans from a presenting complaint and structured revision notes.

Wireflow - Create beautiful flowcharts

IOctopus - IOctopus is an online mind map service for a dive deep into the mind for the best ideas.

Platforma Flowcharts - Collection of cards for website and app prototyping