Quick Comparison

NotionObsidian
Best For Teams and individuals who want a flexible, collaborative, cloud-hosted workspace that handles sync and sharing automatically.Individuals and technically-minded users who want to own their notes as local Markdown files, with deep customization through plugins.
Pricing Free tier available / $5/mo starting (Plus plan; $4/mo billed annually)Free for personal and commercial use / Sync ~$4/mo and Publish ~$8/mo optional add-ons
Winner Our Pick

Tool Breakdown

Overall Winner
N

Notion

Notion's free plan works well solo and scales cleanly into real-time team collaboration without extra setup, making it the safer default for most readers — though Obsidian is the stronger pick for anyone who wants to own their notes as local files with deep plugin customization.

What it does well
  • Real-time collaboration built in — multiple people can edit the same page simultaneously without setting up sync yourself
  • A genuinely free permanent plan for individuals with unlimited pages and blocks
  • Databases, wikis, and docs live in one connected workspace rather than separate tools
Watch out for
  • Team collaboration beyond a single user requires a paid Plus or Business plan
  • Advanced AI features (Notion Agent, AI Meeting Notes, Enterprise Search) are gated to the Business/Enterprise tiers
  • Exporting to Markdown loses some Notion-specific formatting like databases and toggles
Best For Teams and individuals who want a flexible, collaborative, cloud-hosted workspace that handles sync and sharing automatically.
Pricing Free tier available / $5/mo starting (Plus plan; $4/mo billed annually)
O

Obsidian

Local-first, Markdown-based personal knowledge base with a linked-notes graph and an extensible plugin ecosystem.

What it does well
  • Notes are stored as local Markdown files you fully own, rather than living inside a proprietary cloud database
  • Free for both personal and commercial use as of a 2025 policy change — no forced subscription to use the core app
  • A large, actively maintained community plugin ecosystem for extending the app, plus an official open-source web clipper
Watch out for
  • No built-in cloud sync — cross-device syncing requires the optional paid Sync add-on
  • The core desktop and mobile app itself is closed-source freeware; only the surrounding ecosystem (plugin API, sample plugins, web clipper) is open source
  • Real-time multi-person collaboration isn't a core feature the way it is in Notion
Best For Individuals and technically-minded users who want to own their notes as local Markdown files, with deep customization through plugins.
Pricing Free for personal and commercial use / Sync ~$4/mo and Publish ~$8/mo optional add-ons

Frequently Asked Questions

Is Obsidian really free? +

Yes — the core Obsidian app is free for both personal and commercial use since a 2025 policy change. Optional paid add-ons (Sync for cross-device syncing, Publish for hosting notes as a website) are available but not required.

Is Notion or Obsidian better for team collaboration? +

Notion, clearly — real-time multi-person editing is built into its cloud-based model. Obsidian is local-first and doesn't have built-in real-time collaboration; team use typically means sharing a synced vault rather than co-editing live.

Is Obsidian open source? +

Partially. Obsidian's core desktop and mobile app is closed-source freeware, but the surrounding ecosystem — its web clipper, plugin API type definitions, sample plugin template, and community plugin/theme registry — is open source on GitHub.