Obsidian
A private, local-first note-taking app built on linked Markdown files
About Obsidian
Obsidian is a knowledge management tool that stores notes as plain Markdown files on your device, with powerful linking, graph view, and a thriving plugin ecosystem. It has no subscription required for personal use and your notes never go through a third-party server. Widely used by founders and operators as a second brain for research, writing, and planning.
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