Obsidian Review 2026: The Local-First Knowledge Base Champion

Obsidian is the product I have recommended more often than any other on this site. It is also the product with the most intimidating onboarding experience. I want to spend this review being honest about both.

What Obsidian is

Obsidian is a notes application that stores each note as a Markdown file on your local disk. Your "vault" is a folder of .md files. Links between notes are Markdown links. The core app is free. You extend it with plugins — core plugins shipped by the Obsidian team, and community plugins maintained by users — which add functionality like graph views, kanban boards, calendar integration, book-length writing support, and thousands of other things.

The fundamental principle: you own the files. If Obsidian the company disappeared tomorrow, your notes would still be on your disk, still openable in any text editor, still readable in ten or thirty years.

What Obsidian does well

Data ownership. This is the big one. Every other notes app in this category stores your data in a proprietary format on their servers. Obsidian does not. This matters enormously on a ten-year horizon.

Plugin ecosystem. Community plugins cover almost every workflow I have ever needed. Dataview turns Markdown notes into a query-able database. Templater automates routine note creation. Tasks turns Obsidian into a competent task manager. Longform handles book-length writing. Excalidraw adds hand-drawn diagramming. The breadth is unmatched in any notes app I have used.

Backlinks and graph. Obsidian's backlink implementation is first-class. Every time you write [[note-name]] in a note, Obsidian indexes a bidirectional link. The graph view — a force-directed graph of your entire vault — is occasionally useful and always beautiful.

Performance. Obsidian opens in under a second, renders instantly, and handles 5,000-note vaults without slowing down. Notion and Roam cannot claim this.

Pricing. Free for personal use. Sync is $4/month. Publish is $8/month. The core app has been free since launch. The business model is honest.

Where Obsidian falls short

Onboarding. The first month of Obsidian is a real learning curve. The default install is a blank vault; you have to pick a folder structure, decide on tags vs. folders, install plugins, configure hotkeys. I estimate twelve to twenty hours of setup before Obsidian becomes second-nature. Many potential users bounce off during this period.

Mobile. The iOS and Android apps are capable but not delightful. Editing is fine; syncing is fine; but the mobile experience feels like a companion, not a first-class client. For users who draft on mobile, Bear or Apple Notes is often a better fit.

Plugin maintenance. Community plugins are as good as their maintainers. Some are gold-standard and updated weekly. Some are abandoned. A vault heavily dependent on an unmaintained plugin is a fragile vault. Obsidian's "core plugin" layer helps but doesn't cover everything.

Collaboration. Obsidian does not do real-time collaboration. For shared notes, Obsidian Publish lets you publish a subset of your vault; for real collaboration, you use something else. This is a real gap for teams.

Who should use Obsidian

• Writers and researchers with multi-year content pipelines
• PKM users who want backlinks and local storage
• Users who have been burned by a previous notes app's pricing or shutdown
• Developers comfortable configuring their own tools
• Anyone willing to invest the onboarding time

Who should not use Obsidian

• Users who want something to work out of the box
• Teams needing real-time collaboration
• Users whose primary device is a phone
• Users whose actual need is "a place to write down phone numbers"

Pricing

Free for personal use, forever. Commercial use license is $50/year for businesses (the honor system applies for edge cases). Obsidian Sync is $4/month for end-to-end encrypted sync across devices. Obsidian Publish is $8/month for publishing a subset of your vault as a public site. Everything else — every community plugin, the full desktop app, the mobile app — is free.

Bottom line

Obsidian is the correct long-term choice for any user who takes their knowledge management seriously. The onboarding is a real hurdle. The payoff compounds. Three years in, you do not miss anything about the commercial alternatives.