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Understand the differences before you shortlist.

Obsidian×

Outline×

Attribute	ObsidianOther license	OutlineOther license
Overview
Primary focus	Local-first Markdown note-taking app with a plugin ecosystem	Fast, real-time collaborative wiki and knowledge base for teams
Deployment	Not specified	Self-hosted
Source model	Other license	Other license
Pricing model	freemium	paid
API available	Not specified	Not specified
Windows desktop	Not specified	Not specified
Mobile app	Not specified	Not specified
Overview	Obsidian is a local-first note-taking app that stores notes as plain Markdown files, extensible through a large community plugin ecosystem, free for personal use with paid Sync, Publish and commercial-license add-ons.	Outline is a team wiki and knowledge base with real-time collaborative editing, nested docs and search, sold as paid cloud plans with an optional self-hosted deployment.
Explore further
Vendor website	Visit vendor ↗	Visit vendor ↗
ITHub profile	View full profile →	View full profile →

Primary focus: Local-first Markdown note-taking app with a plugin ecosystem
Deployment: Not specified
Source model: Other license
Pricing model: freemium
API available: Not specified
Windows desktop: Not specified
Mobile app: Not specified
Overview: Obsidian is a local-first note-taking app that stores notes as plain Markdown files, extensible through a large community plugin ecosystem, free for personal use with paid Sync, Publish and commercial-license add-ons.

Primary focus: Fast, real-time collaborative wiki and knowledge base for teams
Deployment: Self-hosted
Source model: Other license
Pricing model: paid
API available: Not specified
Windows desktop: Not specified
Mobile app: Not specified
Overview: Outline is a team wiki and knowledge base with real-time collaborative editing, nested docs and search, sold as paid cloud plans with an optional self-hosted deployment.

ⓘ Confirm technical details and prices with each vendor before making a decision.