A secure, open-source notepad that lets you easily store technical data, tokens, private keys etc. to support your development workflow - with end-to-end encryption and real-time synchronization across all your devices.
Key features:
- End-to-end encryption with AES-GCM-256 to protect your data before it leaves your device
- Real-time synchronization across all platforms
- Hierarchical organization with unlimited nesting of notes
- Collaborative sharing of encrypted notes with trusted contacts
- Complete version history to track and restore previous versions
- Offline access with local encrypted cache
- Password masking for sensitive text
- No tracking - your data stays private
- All data is encrypted client-side before transmission.
The open-source codebase (GPLv2) ensures transparent security with features like automatic locking, secure password fields, and a recycle bin for accidental deletions.
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About this launch
Mimiri Notes was launched by Daniel Møller in January 6th 2026.
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