Obsidian

Obsidian is a fiercely powerful, wildly innovative disruptor that mathematically attacked the 'Linear Note-Taking Limitation' of every other notes app. It engineered a terrifyingly powerful personal knowledge management tool built on a local-first, Markdown-based graph database. It is the absolute weapon of choice for researchers, writers, and developers who mathematically demand to build a networked 'second brain' where every note is linked to related concepts, creating a mathematically navigable knowledge graph of their own ideas.