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Obsidian

Productivity

Local-first knowledge graph — Markdown + backlinks + plugins.

How to use Obsidian

Write notes as Markdown files in a local vault and connect ideas with wikilinks and the graph view. Add AI through community plugins to chat with your vault, run semantic search, and generate text, pointing them either at a cloud API for pay-per-token use or a local model to keep everything offline.

Best for

Private, local-first note-taking over plain Markdown files. Bidirectional links and a graph view for personal knowledge management. AI through community plugins for chat, semantic search, and related-note surfacing.

How it behaves

The core app is free with no account and is local-first, so notes stay as files on disk. It ships no native AI, so AI is bring-your-own through third-party plugins, with cost coming from the plugin subscription and your own model or API usage.

Tips

Connect notes with wikilinks to build a usable graph. Add AI through plugins, the core app ships none. Point a plugin at a local model to keep AI fully offline.

Pricing

The app is free for personal use. First-party Sync and Publish are a few dollars a month each, and AI comes through plugins at roughly $15 to $20 a month plus optional model costs.

Prompts for Obsidian

See all 1

Note-Taking System Design Prompt for Digital Apps

Builds a complete note management system tailored to your chosen app, topic, and use case. Outputs a step-by-step implementation guide for ChatGPT, Claude, or Gemini covering structure, templates, tagging, and workflows.

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