Encrypted notes backup you actually control
Cloud backup shouldn't mean handing your notes to a company in plain text. When you turn on backup in SyncNote, each note is encrypted on your device before it ever leaves — and the key lives in your own Google account, not ours.
How encrypted backup works
Encrypted on your device
Each note is encrypted with AES-256-GCM using a fresh random nonce, before anything is uploaded. Only the encrypted version is stored.
Your key stays in your account
A random 256-bit key is generated on your device and kept in your Google Drive App Data folder — a hidden area only this app can access on your account.
Restore on a new device
Sign in on a new device and SyncNote retrieves your key from your account to decrypt and restore your notes.
Backup is optional
SyncNote is local-first, so backup is entirely opt-in. If you never enable it, your notes simply stay on your device. Turn it on only when you want the safety net of being able to restore your notes later.
Backup vs. sync vs. vault
These are three separate features, and you choose per note:
Encrypted backup
Encrypts your notes and stores them so you can restore on a new device.
Device sync
Shares selected notes to a paired workspace in near real time. See how sync works.
Private vault
Keeps sensitive notes on-device only — never uploaded or synced. Learn about the vault.
For the full technical picture of what is encrypted and what is uploaded, see our security page.
Frequently asked questions
Can SyncNote read my backed-up notes?
No. Notes are encrypted on your device with AES-256-GCM before upload, and the key stays in your own Google account.
Do I need to sign in for backup?
Yes — backup uses a Google sign-in so your encryption key can be stored in your Google Drive App Data folder. Writing notes and pairing devices never require sign-in.
Can I delete my backup?
Yes. You can delete all backup data at any time from Settings.
What happens if I lose access to my Google account?
The encryption key lives in that account, so keep it secure. Without it, encrypted backups can't be decrypted.
Back up your notes, privately
Open SyncNote and turn on encrypted backup whenever you want a safety net you control.