Secure Notes
WEBKeep sensitive notes locked behind a PIN with on-device encryption.
What is the Secure Notes tool?
Secure Notes is a private notepad that never touches a server: every note you save is stored only in this browser on this device, and nothing is uploaded, synced or sent anywhere. That is a different model from the online notepads with a password you may have used — services like those keep a copy of your text (encrypted or not) on their servers so you can reach it by URL. Here there is no account, no URL to guard and no server copy at all, because the notes never leave your device in the first place.
Write a note, tap save, and it is waiting the next time you open this page in the same browser — a quick spot for drafts, reminders, lists and anything you would rather keep off cloud notepads. Two honest caveats: the web version stores notes as plain browser data rather than password-encrypted files, so anyone who can use this browser profile could read them — treat it as a private scratchpad, not a safe for passwords. And because the notes live in browser storage, clearing this site's data deletes them, so keep a copy of anything you cannot lose.
When you need a real vault, the Carbide app for Android and iOS (coming soon) upgrades Secure Notes into exactly that: notes locked behind a PIN or your fingerprint and encrypted on-device with AES-256 through the phone's hardware keystore, excluded from cloud backups. Both versions are free, with no sign-up and no tracking.
How to use the Secure Notes
- Write your note in the box — a draft, a reminder, anything you want kept on this device only.
- Tap «Save note» — it joins your list instantly, stored in this browser and nowhere else.
- Add as many notes as you like; they persist the next time you open the page in the same browser.
- Tap the delete icon next to any note to remove it for good.
- For a PIN-locked, AES-256-encrypted vault, use Secure Notes in the Carbide app (coming soon for Android and iOS).
Frequently asked questions
Where are my notes stored?
In this browser's local storage on this device — nowhere else. Nothing is uploaded, so no server, no Carbide employee and nobody on the network can read them. The flip side: they exist only here, in this browser on this device.
Are my notes encrypted?
In the web version, no — notes are kept as plain local browser data, private to this device but not password-protected. For genuinely sensitive content, the Carbide app (coming soon) stores notes encrypted with AES-256 behind a PIN or biometric lock. Honest advice: do not keep bank credentials in the web version.
How is this different from ProtectedText or other online encrypted notepads?
Those services store your (encrypted) note on their servers so you can open it from any device with a URL and password. Carbide stores nothing on any server — more private by design, but it also means there is no cross-device access: your notes stay where you wrote them.
What happens if I clear my browser data?
Clearing this site's data or cookies deletes your notes permanently — they exist nowhere else, so there is nothing to restore. Copy anything important elsewhere before clearing, or keep long-lived notes in the app's encrypted vault instead.
What if I forget my PIN in the app?
There is no recovery by design — the PIN gates a locally encrypted vault, and no reset link or backdoor exists. Pick a PIN you will remember but others cannot guess; if it is lost, the encrypted notes stay unreadable.
Can I access my notes from another device?
No — and that is deliberate. No sync means no server copy to breach or subpoena. If you need notes that follow you across devices, a cloud notes app is the right tool; this one is for notes that should stay put.
Is it free, and is there a limit on notes?
Free with no account. There is no fixed note limit — browsers allow several megabytes of local storage per site, which is thousands of text notes.
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