Obsidian
Notes & KnowledgePrivate, local-first knowledge base with powerful linking
2 comparisons 1W – 1L
Pricing
Personal
$0/mo
- Unlimited local vaults
- All core plugins
- Community plugins
Commercial
$50/user/year
- Commercial use license
- Priority support
- All personal features
Catalyst (optional)
$25+ one-time
- Early access to insider builds
- Special community badge
- Support development
Key Features
- Markdown-based plain text files stored locally — you own your data forever
- Bidirectional linking and graph view to visualize connections between notes
- 700+ community plugins for tasks, Kanban boards, calendars, Dataview queries
- Publish ($8/mo) and Sync ($4/mo) add-ons for hosting and cross-device sync
- Extremely fast search and full offline functionality
Pros & Cons
Pros
- True data ownership — all notes are plain text markdown files on your computer, never locked in
- Free forever for personal use with no feature limits or storage caps
- Graph view and backlinks create a 'second brain' that surfaces unexpected connections
Cons
- No built-in collaboration — you can't easily share workspaces like Notion databases
- Requires technical comfort — plugin setup and markdown syntax intimidate non-technical users
- Sync costs $50/user/year — the 'free' promise disappears if you need mobile access
Obsidian Comparisons
Obsidian vs 
Evernote
Obsidian wins for power users who want free, future-proof note-taking with true data ownership. Evernote wins for non-technical users who need effortless web clipping and cloud sync out of the box.
Obsidian wins
Obsidian vs 
Notion
Notion wins for teams and visual thinkers. Obsidian wins for privacy-focused writers and 'second brain' builders.
Notion wins