Minzel is a beautiful and free mindmapping tool built for creatives and gives you the power to visualize your thoughts. It is simple to use and allows fast and productive mind mapping. You can use Minzel on every modern browser.

Mind42 is a software application that supports the creation of mind maps. It's a specialized tool to quickly create, manage and edit the kind of data structure required for mind maps. Of course mind maps can be used for nearly everything, from todo lists to knowledge...

Produce unique, information rich, vivid solutions for enhanced creative thinking and compelling presentations.

Clickcharts flowchart software allows for easy drawing of diagrams and flowcharts to provide a way of organising and displaying data. Lay out your ideas, organisation and processes or create UML, Venn or mind map diagrams with this flow diagram maker.

Bubbl.us is a simple and free web application that lets you brainstorm online.

A Powerful idea processor.It's Open Source and Freeware. Create UML Diagrams, Network Diagrams, Flowcharts and many other types of diagrams with the versatile Dynamic Draw Software.

Compendium is a software tool providing a flexible visual interface for managing the connections between information and ideas.

All In One Idea Note.

The AXON Idea Processor provides an environment that supports the thinking processes. It helps you to create, communicate, explore, plan, compose, design, learn... and:

germ.io is a project management tool that is centered around ideas and taking them through to execution.

Thinkwise is easy and powerful mindmapping software.

Online brainstorming tool that helps teams plan, brainstorm, prioritise and take action using visual templates with rules you can set.