Brandon Allen

This plugin allows full control of your user permalinks, allowing you to change both the author base (the ‘/author/’ portion of the author URLs), and the author slug (defaults to the username of the author). You can set the author base globally, or you can set it to be user-specific based on a user’s role. You now have the power to craft the perfect URL structure for you Author pages.
WordPress default structure http://example.com/author/username/.
Edit Author Slug allows for http://example.com/ninja/master-ninja/.
Using a role-based author base would allow for http://example.com/ida/master-splinter/ (for an Administrator Role), or http://example.com/koga/leonardo/ (for a Subscriber Role).
Development of this plugin takes place on <a href="https://github.com/thebrandonallen/edit-author-slug/" title="Edit Author Slug on Github" rel="nofollow ugc">GitHub</a>. Pull requests are always welcome!
Translations should be submitted to <a href="https://translate.wordpress.org/projects/wp-plugins/edit-author-slug" rel="nofollow ugc">Translate WordPress</a>.

Edit Author Slug

Allows an admin (or capable user) to edit the author slug of a user, and change the author base.

David Garthe

Your URL structure is one of the most underused SEO levers on your website.
WordPress gives you basic permalink settings, but if you want clean author URLs, better content organization, custom paths, or more control over how users and search engines see your site, things quickly become complicated.
SlugMaster solves that.
SlugMaster gives you a centralized URL management system for WordPress that lets you control how your pages, posts, categories, and authors appear in your URLs.
Instead of being locked into default structures like:
/author/john 
/category/news 
/blog/my-post
You can create cleaner structures like:
/members/john 
/topics/news 
/resources/my-post
Perfect for:
<ul>
<li>Blogs</li>
<li>Communities</li>
<li>Membership sites</li>
<li>Directories</li>
<li>Agency websites</li>
<li>Business websites</li>
<li>SEO-focused content sites</li>
<li>Custom WordPress projects</li>
</ul>
No rewrite rules. No code. No hunting through multiple settings pages.
Just complete URL control.
<h3>Features</h3>
✓ Easily customize author URL slugs 
✓ Create cleaner page and category structures 
✓ Replace default WordPress URL patterns 
✓ Build SEO-friendly URL paths 
✓ Create branded URL structures 
✓ Centralized URL management dashboard 
✓ Route conflict detection 
✓ Canonical URL support 
✓ Redirect protection 
✓ Simple interface with no coding required
<h3>Why SlugMaster?</h3>
Most WordPress sites eventually run into one or more of these problems:
<ul>
<li>URLs look inconsistent</li>
<li>Author URLs feel generic</li>
<li>Site structure becomes difficult to organize</li>
<li>SEO paths are difficult to optimize</li>
<li>URL changes feel risky</li>
<li>Multiple plugins are needed to manage different URL types</li>
</ul>
SlugMaster puts everything in one place.
<h3>Example Use Cases</h3>
Change author URLs:
Before: 
 /author/john-smith
After: 
 /members/john-smith
Organize content:
Before: 
 /category/training
After: 
 /topics/marathon-training
Create branded resource sections:
Before: 
 /blog/seo-checklist
After: 
 /resources/seo-checklist

SlugMaster – Author Slug & Post Slug Customizer

Customize author slug, user nicename, author archive, and custom slug URLs with full WordPress route control.

Edit Author Slug vs SlugMaster – Author Slug & Post Slug Customizer