Sergey Biryukov

Creates a separate tiny .mo file to use on a site front-end. Allows to save some amount of RAM on a shared hosting server.
Thanks to MAX for the original non-plugin solution and to AlexPTS for the idea.

WPLANG Lite

Creates a separate tiny .mo file to use on a site front-end.

Gabriel Cséfalvay

Contact forms will remember user input. When the user types some input into a form, it’ll be saved automatically. When the user opens the same page again, the previous input will be pre-filled in the form. Returning clients and registrees won’t have to type again. The data is stored locally in the user’s browser and it never leaves their device.
What data is remembered and recalled:
<ul>
<li>Text inputs – all kinds, incl. telephone numbers, e-mail addresses</li>
<li>Checkbox states</li>
<li>Radio button states</li>
<li>Dropdown selects’ states</li>
</ul>
Configuration options:
<ul>
<li>Automatic data privacy infobox.</li>
<li>Include/exclude individual fields by their tag name,</li>
<li>Include/exclude pages by URL,</li>
<li>Temporary disable,</li>
<li>Clear settings from database.</li>
</ul>
So far tested with:
<ul>
<li>Contact Form 7</li>
<li>WPForms*</li>
</ul>
*In WPForms, only the standard style dropdown is supported.
More coming soon. Other plugins are likely to work, too.
This plugin was just released, and I’d like to enhance it. Let me know about any ideas or bugs. If you have a problem or a request, open a new topic here: https://wordpress.org/support/plugin/formmemory/
Love.

FormMemory

Let your contact forms remember and pre-fill previous user input, so clients don't have to type again. So far tested with Contact Form 7 and WPFo …

WPLANG Lite vs FormMemory