Some writing isfor almost no one.
ITZA Diary is a diary that is encrypted on your own device before a single word leaves it. The network that keeps it safe never holds anything readable - not the entries, not the pictures, not even the titles. Share it with up to three people you choose, or with nobody at all.
Thursday, late
Every entry is locked with its own key, and that key is sealed separately to each person allowed to read it. The network stores the sealed result and nothing else - a node operator, a stranger, or the platform itself sees only noise.
Private by construction,
not by promise.
Encrypted before it leaves
Entries, photos, video and audio are all encrypted in your browser. There is no server that sees a draft, no admin who could peek, no database of your words. What cannot be read cannot be leaked, sold or subpoenaed into sense.
Yours on every device
Your diary follows your ITZA account. Sign in on a new phone and it is simply there - no sync service, no backup file, no second password to lose.
Shared with a named few
Give up to three people a name and a password you choose. They read your diary at your own link - no account, no app store, nothing to install. Take access away whenever you want, and everything you write afterwards is locked to them.
Deleted means deleted
Removing an entry removes it - a real deletion, not a hidden flag. Erasing your account takes the whole diary with it, keys and all, and says plainly what a public ledger cannot unwrite.
Four steps, one promise.
Sign in with one ITZA account
The same username and password you use in every ITZA app. Your credentials become your keys on your own device - nothing is stored or sent, and there is no reset, because there is nobody who could read your diary to give it back.
Write
A quiet page: a title, your words, your pictures. Formatting appears when you select text and gets out of the way when you do not. Drafts stay on your device, encrypted, until you choose to save.
Save privately
Saving encrypts the entry under its own fresh key, seals that key to you and to the people you have chosen, and stores the sealed result on the ITZA network - where it survives lost phones, dead laptops and forgotten backups.
Share it, or don’t
Hand someone a name and a password the way you would hand over a house key. They open your link and read - nothing else, nowhere else. Remove them in one press, and from that moment on, new entries are not addressed to them at all.
Bring the years you already wrote.
Photograph the pages
Point your camera at the diary you kept at nineteen. Each page becomes an encrypted image inside a new entry - kept exactly as it looks, ink and margins and all.
- Shoot page after page without losing your place
- Photos are encrypted like every other attachment
- One paper entry at a time works best
Let the words be read
Have any page transcribed - typed by you, or read for you by Anthropic’s Claude, per page, at a stated price, only when you ask. The words come back sealed and live inside the encrypted entry like everything else.
- Each page is its own decision - and its own consent
- Pages you never send never leave your device
- The transcription makes old handwriting readable and shareable
What private means here -
and what it does not.
Nobody holds your key
Not us, not a node, not a support desk. Your keys derive from your sign-in on your own device. That is why there is no password reset: a diary someone else could recover is a diary someone else could read.
Guests prove themselves by decrypting
A guest’s password never travels anywhere. Getting it wrong simply fails to decrypt - there is no login server to trick, no lockout to bypass, nothing to reset.
Private, not anonymous
A public network can see that an account keeps a diary, how many entries it has and when they were written - the metadata no client-side encryption can hide. We say this here, in plain sight, rather than letting you assume otherwise.
Removal is forward-looking
Removing a guest locks every future entry away from them instantly. It cannot un-read the past - and we tell you exactly that when you press the button, because a privacy tool that flatters you is a privacy tool that fails you.
The first entry is the hardest.
One account, every ITZA app, and a diary that is finally, verifiably yours. Nothing to install - it runs where your browser is.