ZestCalc

Live Clipboard

Move text between your devices through a short-lived, real-time board.

How to use Live Clipboard

Move text between your devices with one temporary board.

Four simple steps

Use the same board name and protection details on both devices.

  1. Name your board

    Enter a short name. Open the board if it exists, or create it.

  2. Choose who can open it

    For private text, use a passphrase or a secure link.

  3. Paste and send

    Add your text, then select Save and send.

  4. Open it on your other device

    Use the same board name and PIN, passphrase, or secure link.

Leave the board open on both devices to see updates. Your draft stays on the current device until you select Save and send.

How your password protects your text

With a PIN, passphrase, or secure link, your secret stays in your browser. It is never sent to or saved on our server.

One password, two separate jobs

Your browser makes one result for checking access and another for protecting the text. The two results cannot replace each other.

Stays on your device

Your PIN or passphrase

The secret you use to open this board.

Done inside your browser

Create two separate results

One checks access. The other protects your text.

1. Check access

Confirm that this browser may open the board.

  1. Check without sharing the password

    The browser sends separate information that the server can compare.

  2. Allow or reject access

    A match lets this browser connect.

2. Protect the text

Lock and unlock the content on your device.

  1. Keep the key in the browser

    The key that unlocks your text stays on your device.

  2. Send only locked text

    Your text is encrypted before it reaches the server.

For a protected board, the server stores an access check and encrypted data. It does not store your secret, the key that unlocks the text, or readable text.

No protection works differently: the text is sent to and stored on the server in readable form.

A six-digit PIN is convenient, but a strong passphrase or generated secure link is safer for sensitive text.