Local-only secret note
A private note, encrypted with your password and saved only in this browser. Nothing is uploaded.
Files are processed in your browser and never uploaded.
How to use Local-only secret note
Add your input
Put your your note (auto-saved, encrypted) into the box on the page.
Set the options
Choose Your private note and Your private note (pw2). Nothing is hidden until you press a button.
Press Create note, Don →
The result is produced on your own device, using your browser's own random and crypto functions where randomness is involved. Copy copies it.
What this tool does
One note, encrypted with your password
The note is encrypted with a password you choose before it is stored, so what sits in this browser is ciphertext rather than your text.
Only you can open it
The password is never stored anywhere, which means there is no reset. Lose it and the note cannot be recovered, by you or by anyone else.
Runs fully in your browser with no upload and no sign-up
Everything happens in your browser and the note never leaves this device, so there is no server holding it and no account to make.
Frequently asked questions
Where is the note stored?
Only in this browser on this device, using its local storage, and encrypted with your password. It is never uploaded, synced or backed up anywhere.
How is it protected?
The text is encrypted with AES-256-GCM using a key derived from your password (PBKDF2). Without the password the stored data is unreadable, even to someone with access to the device's files.
What if I forget the password?
The note cannot be recovered. There is no reset or backdoor, which is what keeps it private, so choose a password you will remember.
Will the note follow me to another device or browser?
No. Because it is stored locally, it exists only in the exact browser where you created it. Clearing your browsing data or using private mode will remove it.
Is this good for very sensitive secrets?
It is a convenient, genuinely encrypted scratchpad for personal notes. For critical secrets like recovery phrases, a dedicated password manager with backups is still the safer choice.
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