Brian S. Reed

Do you need to be able to select multiple bits of text but a repeater field is overkill? Use the tag-it field. This plugin brings uses ACF 5’s built-in Select2 library.
This field currently includes the following options:
<ul>
<li>available tags : Used as source for the autocompletion.</li>
</ul>
The jQuery UI plugin used in the first version of this plugin can be found here: https://github.com/aehlke/tag-it 
The Select2 library used in ACF 5 can be found here: http://select2.github.io/select2/
<h4>Compatibility</h4>
This ACF field type is compatible with: 
* ACF 5

Advanced Custom Fields: Tag It Field

The Tag It field for ACF using ACF 5's built-in Select2 library.

Hiroshi Sekiguchi

PRESSMAN

kazunao

Shotaro Muraoka

kengotakeuchi

hommakoharu

This plugin enables you to add hint text in ACF field in addition to the default description.
You can choose how to display your hint text from two types. One shows the button to toggle the display of the hint text and the other is the icon, which shows help text when the pointer is over it.
This plugin requires Advanced Custom Fields plugin.

ACF Additional Hint

This plugin enables you to add hint text in ACF field.

Advanced Custom Fields: Tag It Field vs ACF Additional Hint