Redwoodcity

It is a plug-in that displays a notepad on the widget. The data is saved in LocalStorage in the browser, so you can use it easily without login.

WP Notepad

It is a plug-in that displays a notepad on the widget. The data is saved in LocalStorage in the browser, so you can use it easily without login.

swedish boy

Add up to 3 notepads to the Dashboard. Great for messages, html and ideas between admins and developers on your WordPress Site. 
Read more on how to use Dashboard Notepads in the FAQ.
New in version 1.2
<ul>
<li>Each notepad is now an individual widget.</li>
<li>User view/edit settings for each pad</li>
<li>Configuration on each widget directly.</li>
<li>Configuration page can disable WordPress widgets.</li>
</ul>
Features:
<ul>
<li>Dashboard Widgetized</li>
<li>Up to 3 different notepads as individual widgets.</li>
<li>Disable other widgets (optional).</li>
<li>HTML support for view mode.</li>
<li>Raw CSS customization.</li>
</ul>

Dashboard Notepads

Add up to 3 notepad widgets to your Dashboard. Disable the default widgets if you like. Great for admins to globally message users.

WP Notepad vs Dashboard Notepads