Grégory Viguier

<p>With this plugin, administrators can change the default author base in the registered users profile url, and the author slug of each user.<br />
Changing an author slug is a good thing for security (if your login is “This Is Me”, your slug will be “this-is-me”, a bit easy to guess).<br />
The plugin adds 2 fields for this purpose, one in permalinks settings, the other in a user profile.</p>
<ul>
<li>Default: <em>example.com/author_base/author_nicename/</em></li>
<li>Customized: <em>example.com/jedi/obiwan/</em></li>
</ul>
<h4>How to edit the slugs</h4>
<ul>
<li>Go to <em>Settings</em> > <em>Permalinks</em> to edit the author base: “author” => “jedi”</li>
<li>Go to <em>Users</em> > <em>“Any user profile”</em> to edit the user slug: “agent-smith” => “obiwan”</li>
</ul>
<h4>Translations</h4>
<ul>
<li>English</li>
<li>French</li>
<li>German by <a href="https://wordpress.org/support/profile/carny88" rel="ugc">Carny88</a></li>
<li>Spanish by <a href="https://wordpress.org/support/profile/oliverbar" rel="ugc">Oliver</a></li>
</ul>
<h4>Multisite</h4>
<ul>
<li>The plugin is ready for Multisite.</li>
</ul>


SF Author Url Control

Allows administrators or capable users to change the users profile url.

Redwoodcity

<p>When a post title contains multi-byte characters (such as Japanese), WordPress generates a URL-encoded slug like <code>%e3%81%82...</code>, which results in a long and unreadable permalink.</p>
<p>This plugin replaces such auto-generated slugs with <code>{post_type}-{post_ID}</code> (e.g. <code>post-123</code>). A multi-byte slug is kept as-is when the user has explicitly specified it.</p>
<h4>Usage</h4>
<ol>
<li>Go to “Settings” -> “Default Permalink” in the WordPress admin.</li>
<li>Check “Enable” and save changes.</li>
</ol>


Default Permalink

Prevents multi-byte (URL-encoded) slugs in the default permalink. Multi-byte URL can still be used when the user explicitly specifies it.

SF Author Url Control vs Default Permalink