Stop pasting secrets into chat, email, and tickets.

What pasting costs you

Chat is fast, but it is a terrible long-term home for passwords and API keys. Nullo keeps the speed without the permanent archive.

• Permanent archive

  Secrets stay searchable in Slack, email, and ticket threads long after the handoff is done.

• Wider exposure

  Exports, backups, and lock-screen notifications spread the secret beyond the person you meant to reach.

• "Delete later" rarely happens

  The fast option wins every time. Pasting feels done; cleaning up does not.

Send sensitive text in seconds

1. 1

   Hit the hotkey

   Press ⌘⇧V from anywhere, paste the secret, and Nullo encrypts it locally before anything leaves your Mac.

   

2. 2

   Choose the rules

   You control expiry and burn after read. Set how long the message stays available and whether it is destroyed after the first open.

   

3. 3

   Paste the link anywhere

   Drop the secure link into Slack, email, or Jira. The recipient opens it in their browser and Nullo follows the rules you set.

   

Keep the speed, skip the risk

• Faster than browser tools

  A menu-bar app beats opening a tab, logging in, and filling out a form every time you need to share something.

• Lighter than a password manager

  No vault, no autofill, no team admin console. Just encrypted links when you need them.

• Safer than chat

  Ephemeral by design. We only ever store ciphertext, and you decide when the link disappears.

Built for messages you should not keep around

• Encrypted before sending

  Plaintext never touches our server. Nullo sends only encrypted ciphertext.

• Zero-knowledge relay

  The decryption key stays in the URL fragment, which browsers never send to us.

• Nothing to clean up later

  Custom expiry and optional burn after read keep old secrets from lingering longer than you intended.

What your recipient sees

They open the link in any browser, decrypt in one click, and read the message. No app, no account, no confusing setup.

No email. No password. No profile to leak.

Nullo does not need your email, name, or password. You get a random account number, and that is your whole identity.

1. 1

   Create your account

   We generate a random 16-digit number on the spot. No email, name, or password.

2. 2

   Save the number

   It is the only credential there is. Keep it somewhere safe, like a password.

3. 3

   Pay and download

   $20.00/year unlocks the macOS app. 7-day money-back guarantee on card payments.

FAQ

Do I need an account?

Senders need a 16-digit account number to use the macOS app; there is no email, username, or password. Recipients do not need anything; they open the link in a browser.

Is this macOS only?

Yes for sending. The macOS menu-bar app is how you create links. Recipients open links in any browser. Windows and Linux sender apps are on the roadmap but not shipped yet.

How is this different from other encrypted link tools?

Nullo is built around a dedicated menu-bar workflow: hotkey, paste, copy link. Accounts are anonymous 16-digit numbers with no email signup, and one flat yearly price covers unlimited links. Read a deeper comparison.

Can I turn off burn after read?

Yes. You choose how long each message stays available and whether it is destroyed after the first open.

What if I lose my account number?

It cannot be recovered because there is nothing tying it to you. Store it like a password.

Can you read my messages?

No. Text is encrypted on your device, and the decryption key never reaches the server. We only ever see ciphertext.