Brainstorming

Mindmup

MindMup is a free software for creating and sharing simple mind maps.

Flockdraw

Flockdraw is a free drawing tool that lets you collaborate with others in real-time.

Xmind

Xmind is a free, open-source mind mapping and brainstorming software.

MindMeister

Mindmeister lets users create, collaborate, and share mind maps in real-time.

Wisemapping

A free, fast and simple online mind mapping editor for individuals and businesses.

Scapple

An easy-to-use tool for getting ideas down as quickly as possible and making connections between them.

Coggle-it

Coggle.it is a collaborative mind-mapping tool designed to help you make sense of complex things.

Bubbl-us

Bubbl.us lets users create colorful mind maps to print or share with others.