O
Obsidian
A second brain, for you, forever.
4.60(1892 reviews)
Founded: 2020•Updated: September 14, 2025
Visit Website
note-taking
Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. It lets you create links between notes and visualize the connections.
Key Features
Graph view
Bi-directional linking
Plugin ecosystem
Markdown support
Local files
Themes
Canvas mode
Search and replace
Pros
- Completely offline
- Own your data
- Powerful linking system
- Highly customizable
- Active plugin community
- Fast and responsive
Cons
- Steep learning curve
- Can be overwhelming for beginners
- No built-in collaboration
- Requires manual sync setup
Integrations
Readwise
Zotero
Anki
Day One
Pricing
Personal
Free
- Unlimited notes
- Graph view
- Plugin ecosystem
- Local storage
- Markdown support
Catalyst
$25
- Early access to new features
- Exclusive badges
- Community support
- All Personal features
Commercial
$50/yearly
- Commercial use license
- Priority support
- All Personal features
Quick Info
Platforms
macOS
Windows
Linux
iOS
Android
Pricing Model
freemium
Founded
2020