Coggle is a collaborative, online mind mapping and flowcharting tool that helps users quickly create, share, and visualize complex information and ideas.

MindMup is a free online mind mapping software for creating, sharing, and publishing visual diagrams quickly, used by individuals and teams for planning and brainstorming.

Mind42 is a free, fast, and simple online mind mapping software that allows users to visually organize information, create diagrams, and collaborate on mind maps.

WiseMapping is a 100% free, open-source online mind mapping tool for individuals and teams to create, share, and collaborate on visual diagrams.

EdrawMind is a cross-platform tool for mind mapping, brainstorming, outlining, and presentation, heavily featuring AI generation tools.