Secure Notes
Per-account encrypted notes unlocked by a passphrase.
Overview
Secure Notes is a per-account, passphrase-encrypted notebook for the kind of information that does not fit cleanly in a password manager but absolutely should not sit in a plain text file. Bank account details, passport numbers, medical history summaries, legal document references, a will's location, the answer to the security question your bank insists on, the long-form context behind a credential. Anything you would not want to lose, and anything you would not want anyone else to read casually.
Notes are encrypted in the browser with a passphrase, and only ciphertext is written to local storage. The intent is to give you a notebook that survives device theft, casual snooping, or shared use of a workstation without leaking anything readable. Within the unlocked view, notes can be edited, reorganised, and searched freely, with all writes re-encrypted on save.
How it works
On first use you set a passphrase. Each note has a title and a free-form body that supports any text content. Saved notes are encrypted before being written to local storage. Locking the notebook clears the decrypted state in memory; re-entering the passphrase decrypts again. A search bar filters across note titles and bodies once unlocked.
Because the encryption is local and there is no server, the only attack surface is your own device plus your own passphrase. Forgetting the passphrase makes the notes unrecoverable.
Examples
- A note containing passport numbers, expiry dates, and a scanned-document reference for the household.
- The long-form context behind a tricky credential, including server addresses, ports, and recovery hints.
- A summary of your medical history, blood type, allergies, and current medications, useful in an emergency.
- A note describing where wills, life insurance documents, and safe-deposit keys are stored, intended to help next of kin.
FAQ
How is the encryption done?
A key derived from your passphrase encrypts every note before it is written to local storage.
Can I recover a lost passphrase?
No. The encryption is irreversible without the passphrase. Treat it as a master credential.
Is this a Markdown editor?
Notes are plain text. Lightweight formatting conventions like headings and lists are visible but not rendered as rich text.
Can I share a note securely?
Not directly. You can decrypt a note and copy the contents into an encrypted message channel if you need to share.
Is the data ever uploaded?
No. The encrypted store lives entirely in your browser's local storage on this device.