RiverCityGraphix

The Limit Bio plugin allows you to quickly limit the character count on the biographical information field on the edit profile page of your site.
Features:
<ul>
<li>Admin settings to restrict the biography character count site wide.</li>
<li>Limits Users to a specific character count in their bio</li>
<li>Displays the remaining characters allowed and updates in real time as the user types.</li>
<li>Works even if Javascript is disabled</li>
<li>Stops a user from typing when the character count is reached</li>
<li>Replaces the default biographical information field in the wordpress profile</li>
</ul>

Limit Bio

The Limit Bio plugin allows you to quickly limit the character count on the biographical information field on the edit profile page of your site.

Kevin Leary

Replaces the Biographical Info profile field with the WordPress visual editor, TinyMCE, allowing you to editor an author’s biography using rich text.
Please note that this plugins modifies the output of <code>get_the_author_meta('description')</code> and <code>the_author_meta('description')</code>, apply the same filters used to format content in the main editor.
<h4>Multisite Compatibility</h4>
The Visual Editor Biography plugin is compatibly with WordPress Multisite, just use the <a href="https://codex.wordpress.org/Create_A_Network#WordPress_Plugins" rel="nofollow ugc">Network Activate</a> feature to enable a visual editor on every site. If you only want a visual editor for a specific site then activate the plugin for that site only.

Visual Editor Biography

Works great

Great plugins last and this one still worsk well.

Still word well

Replaces the author "Biographical Info" profile field with a TinyMCE visual editor.

Limit Bio vs Visual Editor Biography