If you want a tool to help you structure and explore complex subjects, Heuristica could be a great choice. This AI-assisted concept mapping tool uses a mind map interface, drawing information from sources like Wikipedia and PubMed, to create visualizations of information. It comes with features like AI-generated concept maps, custom prompts and support for multiple languages, so it's good for researchers, students and businesspeople.
Another good option is TreeMind, which offers a range of professional-looking tools for brainstorming and creative planning. It can handle different types of diagrams, including mind maps, logical diagrams and timelines. TreeMind has real-time collaboration, lots of templates and cross-platform file synchronization, so it's good for personal projects and team work.
Slatebox is also worth a look. This visual collaboration tool uses AI to create editable diagrams from natural language prompts. It's got features like auto-generated diagrams, real-time collaboration and customizable templates. Slatebox is good for teams of any size, with easy-to-use tools for brainstorming, mind-mapping and design sessions.