Obsidian
Local-first knowledge base
Overview
Obsidian is a local-first note-taking app built on plain Markdown files, designed for personal knowledge management. It links notes into a graph and is highly extensible through community plugins, while keeping your data on your own device. Free for personal use, with paid add-ons for sync and publishing.
Knowledge graph
Link notes into a graph.
Local Markdown
Your files, your device.
Plugins
Extend with the community.
Pros
Cons
Key features
Pricing
Personal
$0
Free for personal use
Add-ons
Paid
Sync and Publish
Best for
Personal knowledge
Build a linked notes vault.
Markdown notes
Write in portable plain text.
Research
Connect ideas in a graph.
Alternatives to Obsidian
View all →Frequently asked questions
Is Obsidian free?
Yes, Obsidian is free for personal use, with paid add-ons for sync and publishing and a commercial license option.
What is Obsidian?
A local-first note-taking app built on Markdown files for personal knowledge management.
Does Obsidian store my notes locally?
Yes, notes are plain Markdown files stored on your own device.
Can I extend Obsidian?
Yes, through a large ecosystem of community plugins and themes.
How does Obsidian compare to Notion?
Obsidian is local-first and Markdown-based with no lock-in, while Notion is a cloud all-in-one workspace with databases and collaboration.
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