This task can be performed using Mimiri Notes
Secure, encrypted notepad with device synchronization
Best product for this task
Mimiri Notes
productivity
Mimiri Notes provides a safe place to store your notes, passwords, and confidential data with strong encryption and real-time synchronization across all your devices. Install once, access everywhere. Your encrypted notes sync instantly across Windows, Mac, Linux, iOS, Android, and web browsers.

What to expect from an ideal product
- Install Mimiri Notes once on your main device and it automatically sets up encrypted sync across all your other devices including phones, tablets, and computers
- Access your private notes from any web browser without installing anything extra - just log in securely and your encrypted data appears instantly
- Your notes stay protected with strong encryption even when syncing between devices, so nobody can read them even if they intercept the data
- Real-time sync means you can start writing a note on your phone and finish it on your laptop without any manual transfers or USB drives
- Works on every major platform from Windows and Mac to iPhone and Android, so you're never locked out of your notes regardless of which device you grab
