Privacy-oriented note-taking app for non-linear thinking, blending knowledge graph creation with wiki-style linking. Supports Markdown, end-to-end encryption, and plugins for customization. Offers distraction-free mode, tags, themes, syntax highlighting, and operates offline without tracking.
Cost / License
- Freemium (Subscription)
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- Android Tablet
- iPad
- Snapcraft
- Microsoft Edge
- Google Chrome
- Flathub
- Safari
- Mozilla Firefox




Most users think Obsidian is a great Microsoft OneNote alternative.
Obsidian is the most popular Windows, Android, Mac & iPhone alternative to Microsoft OneNote.
Obsidian is the most popular free alternative to Microsoft OneNote.
- Obsidian is Freemium and Proprietary
- Obsidian is Lightweight and Privacy focused

























































Same structure as Onenote, supports images, looks modern.
Doesn't have all the same features (like drawing on the screen) but also has its own unique features Onenote doesn't have.
Also runs on Linux, which is the biggest plus for me.