Obsidian

A local-first note-taking app where all your notes are plain Markdown files stored on your machine. Its plugin ecosystem includes AI tools, and the Local REST API makes it perfect as a knowledge backend for AI agents. Best for knowledge workers who want full ownership of their data.

AI ToolFree Tier: Free personal use; plain markdownCompany: Obsidian (Dynalist)Category: End-User ToolsQuick Start: Download Obsidian from obsidian.md → Create a vault (folder) for your notes → Start writing in Markdown and link notes with [[double brackets]]

Obsidian

Local-first knowledge base — AI daemon-friendly via REST API

Visit Obsidian →

A local-first note-taking app where all your notes are plain Markdown files stored on your machine. Its plugin ecosystem includes AI tools, and the Local REST API makes it perfect as a knowledge backend for AI agents. Best for knowledge workers who want full ownership of their data.

FREE TIER
Free personal use; plain markdown
COMPANY
Obsidian (Dynalist)
CATEGORY
End-User Tools › Productivity
PRIVACY
Local-first; files stay on machine
TAGS
knowledge-baselocal

QUICK START

Download Obsidian from obsidian.md → Create a vault (folder) for your notes → Start writing in Markdown and link notes with [[double brackets]]

BEST FOR

  • ▸Knowledge workers who demand full data ownership and local-first storage.
  • ▸Users building personal AI agents needing a robust local knowledge backend.
  • ▸Markdown power users seeking an extensible, privacy-focused note system.

NOT FOR

  • ✕Teams needing seamless cloud collaboration and shared real-time documents.
  • ✕Users who prefer zero-setup, fully managed, browser-based note apps.
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