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Obsidian

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Free, local-first note-taking app built on Markdown with powerful linking and a huge plugin ecosystem.

Note Taking Software
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  • Deployment Hybrid
  • Starting price $4
  • Free trial Not offered
  • Best for Freelancers, SMEs, Agencies

What is Obsidian?

Obsidian is a note-taking and personal knowledge base application that stores notes as plain Markdown files directly on your device. It emphasizes bidirectional linking, so any note can reference another and automatically show a list of backlinks, and an interactive graph view visualizes how notes connect. Obsidian's Canvas feature offers an infinite whiteboard for arranging notes, images, PDFs, and other content spatially, and thousands of community-built plugins and themes let users customize functionality and appearance.

The core Obsidian app is completely free for personal use, with no sign-up required, and works offline on Windows, macOS, Linux, iOS, and Android. Paid add-ons cover optional cloud sync and web publishing, plus a commercial-use license for businesses. Because notes are stored locally as Markdown files, users retain full ownership of their data and can move it to other apps at any time.

Key Features of Obsidian

Obsidian lists 8 documented features, including Bidirectional linking and backlinks between notes, Interactive graph view of note connections and Canvas infinite whiteboard for visual note arrangement. The list below covers what the product does rather than how it is marketed.

  • Bidirectional linking and backlinks between notes
  • Interactive graph view of note connections
  • Canvas infinite whiteboard for visual note arrangement
  • Local Markdown file storage with no vendor lock-in
  • Thousands of community plugins and themes
  • Split-pane editing and note embedding
  • Tags, folders, and block references
  • Works fully offline

Obsidian Pricing

Obsidian lists 4 plans, from $4 to $50.

Sync

$4

per user, per month, billed annually

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Sync notes across devices with end to end encryption, version history, shared vaults and priority support; billed monthly it is $5 per user per month, and the app itself is free to use.

Publish

$8

per site, per month, billed annually

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Publish notes to the web; billed monthly it is $10 per site per month.

Catalyst

$25

one time payment

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Optional license that supports development and adds early access to beta versions, community badges and exclusive channels.

Commercial

$50

per user, per year

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Optional commercial use license that supports development.

Obsidian Specifications

Obsidian is available on Windows and macOS and has iOS and Android apps. It has a free plan.

Deployment
  • Hybrid
Billing cycle
Monthly
Desktop
  • Windows
  • macOS
Mobile
  • iOS
  • Android
Languages
  • English
Built for
  • Freelancers
  • SMEs
  • Agencies
Support
  • Email
  • Tickets
Integrations
Community plugin ecosystem, Zotero (via plugins), Readwise (via plugins), GitHub (via plugins)
Public API
No
Free trial
No
Free plan
Yes
Runs in browser
No
Customisable
Yes
Website
obsidian.md

Obsidian Videos

Obsidian Screenshots

Obsidian screenshot 1

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Obsidian FAQs

Yes, the core Obsidian app is free for personal use with no account required, including unlimited vaults.

No, notes are stored locally as Markdown files on your device by default; cloud sync is an optional paid add-on called Obsidian Sync.

Yes, but businesses using Obsidian commercially are asked to purchase a $50 per user per year commercial license.

No, Obsidian is a downloadable desktop and mobile app rather than a browser-based web app.

Canvas is an infinite whiteboard feature for visually arranging notes, images, and other content.