The Lens - Patent and Scholarly Work

https://www.lens.org/ 

ScholarAI

https://scholarai.io/ 

Undermind AI Co-Researcher

https://www.undermind.ai/ 

ConceptMap AI

https://www.conceptmap.ai/ 

Mermaid: Create diagrams and visualizations using text and code

https://mermaid.ai/web/ 

Markmap: Turn your markdown into Mindmap

 https://markmap.js.org/

Napkin AI: Turn Text into Visuals

https://www.napkin.ai/