KAIRUS
Secure Notes.
Peace of Mind.
Military-grade encryption for your notes. Password-protected folders. Auto-save. 100% offline. No tracking. No subscriptions.
Why KAIRUS?
AES-256 Encryption
Military-grade encryption for all your notes. Your data, your privacy. Never compromised.
Password-Protected Folders
Create folders with custom passwords for maximum security and organization.
Auto-Save
Never lose your work with intelligent auto-save and automatic backup to Vault.
Quick Note
Global hotkey (Ctrl+Insert) to capture ideas instantly from anywhere on your system.
Export to PDF
Export your notes to PDF or TXT with one click. Perfect for sharing and printing.
100% Offline
All data stored locally. No cloud, no tracking, no subscriptions, no data mining.
Security First
KAIRUS uses advanced cryptography to keep your notes safe from unauthorized access.
- AES-256-CBC End-to-end encryption
- PBKDF2 Key derivation (100,000 iterations)
- Unique Salt Per encryption operation
- Secure Folders Password-protected
- Secure Hashing For password storage
Keyboard Shortcuts
💡 Pro tip: Use Ctrl+Insert from any application to instantly capture your thoughts!
Frequently Asked Questions
Yes! KAIRUS is completely free and open source under the MIT license. No hidden fees, no subscriptions, no premium tiers. Security and privacy should be accessible to everyone.
KAIRUS is designed to be 100% offline for maximum security. However, you can manually sync your data folder using any cloud service like Google Drive, Dropbox, or OneDrive.
Due to end-to-end encryption, there is no password recovery option. Your notes are only accessible with your password. Keep it safe and consider using a password manager!
Currently, we officially support Windows. Mac and Linux versions are in active development and coming soon! Follow our GitHub for updates.
KAIRUS uses AES-256-CBC, the same standard used by governments and militaries worldwide, combined with PBKDF2 key derivation (100,000 iterations) and a unique salt per note.
Yes! You can export individual notes as PDF or TXT files with preserved formatting. Batch export and additional formats (Markdown, HTML) are coming in future updates.
Absolutely not. KAIRUS is 100% offline and collects zero telemetry or personal data. What you write stays on your device, encrypted.
Ready to get started?
Download KAIRUS today and take control of your notes with military-grade encryption. Your privacy matters.
