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Strict Permalinks does two things:
<ol>
<li>Restricts the <code>post_name</code> portion of the permalink to alphanumerics and hyphens</li>
<li>Disables permalink editing once a post is published</li>
</ol>
Like me, you may have been under the impression that post slugs are already restricted to alphanumerics and hyphens. In the current WordPress 2.8.5, a title that includes certain kinds of punctuation (e.g., “smartquotes”) will result in URL-encoded characters in the <code>post_name</code> field. Many browsers handle this oddity seamlessly, however this may cause difficulties when integrating with systems expecting a more limited URL syntax.
<h3>Upgrade</h3>
<ol>
<li>Use the plugin updater in WordPress or…</li>
<li>Delete the previous <code>strict-permalinks</code> folder from the <code>/wp-content/plugins/</code> directory</li>
<li>Upload the new <code>strict-permalinks</code> folder to the <code>/wp-content/plugins/</code> directory</li>
</ol>
<h3>Usage</h3>
<ol>
<li>In all cases the <code>post_title</code> to <code>post_name</code> conversion (i.e., the <code>sanitize_title</code> filter) will be limited to a-z, 0-9 and hyphens (-).</li>
<li>If a post is not yet published, the permalink can be edited as usual.</li>
<li>Once a post is published, the permalink editing interface is disabled.</li>
</ol>

Strict Permalinks

Restricts permalink syntax and disables permalink editing after a post is published.

Maciej Bis

The native WordPress permalink system is designed to be simple and easy to configure. Permalink Manager extends it and allows you to define custom URL structures and edit individual permalinks exactly the way you want.
The free version lets you manage URLs for posts, pages, and custom post types, while the Pro version also includes support for categories, tags, and custom taxonomies.
<a href="https://permalinkmanager.pro/docs/?utm_source=wordpressorg" rel="nofollow ugc">Documentation</a> | <a href="https://permalinkmanager.pro/features/?utm_source=wordpressorg" rel="nofollow ugc">Buy Permalink Manager Pro</a>
The plugin supports all custom post types and taxonomies, and it is compatible with popular plugins like WooCommerce, Yoast SEO, WPML, and Polylang.
Permalink Manager automatically redirects original and duplicate URLs to the correct page. Using the <a href="https://permalinkmanager.pro/docs/plugin-settings/canonical-redirects/" rel="nofollow ugc">canonical redirect</a>, it prevents the broken links that can hurt the UX and SEO, potentially causing a drop in organic traffic.
<h4>Features</h4>
<ul>
<li>Change Single Permalinks For a consistent and SEO-friendly URL structure, you may customize and <a href="https://permalinkmanager.pro/docs/basics/change-permalink/" rel="nofollow ugc">change the permalink</a> of each post, page, and custom post type item. Categories, tags & custom taxonomies terms permalinks can be edited in Permalink Manager Pro.</li>
<li>Customize URL Formats Using the “Permastructures” settings, you can choose the default format for custom URLs using “Permastructures” settings. The new format will be applied automatically when a new post/term is added or once the old permalinks are regenerated.</li>
<li>Custom Post Types Support Choose the post types and taxonomies you want to customize and exclude the rest of them. The plugin supports post types and taxonomies managed with ACF, Pods, JetEngine, Toolset Types, and other plugins.</li>
<li>Translate Permalinks With WPML or Polylang active, Permalink Manager allows you to translate the slug and customize the URL structure for every language separately.</li>
<li>Remove Parent Slugs Remove parent slugs from your WordPress URLs organize them hierarchically by <a href="https://permalinkmanager.pro/docs/tutorials/add-category-slug-wordpress-permalinks/" rel="nofollow ugc">adding categories to custom permalinks</a>, all without writing a single line of code.</li>
<li>Canonical Redirect Automatically redirect old URLs whenever they change, preventing broken links, and protecting your site’s search visibility.</li>
</ul>
<h4>Additional features available in Permalink Manager Pro</h4>
The free version covers all the necessary functions, while the premium version adds a few handy functionalities that can improve the process of adjusting WordPress permalinks.
Click here for additional information and to purchase <a href="https://permalinkmanager.pro?utm_source=wordpress" rel="nofollow ugc">Permalink Manager Pro</a>.
<ul>
<li>Custom Taxonomies Support Taxonomies are fully supported in the premium version (categories, tags & custom taxonomies). You may adjust individual term permalinks or change them all at once using “Permastructures”.</li>
<li>Full WooCommerce Support Permalink Manager Pro may be used to change the URL addresses of WooCommerce products, tags, categories, and attributes. For example, you may use the plugin to <a href="https://permalinkmanager.pro/docs/tutorials/remove-product-category-woocommerce-urls/" rel="nofollow ugc">remove /product/ and /product-category/ from WooCommerce URL</a>.</li>
<li>Custom Fields Support Permalink Manager is the only actively supported WordPress plugin that allows to <a href="https://permalinkmanager.pro/docs/tutorials/how-to-use-custom-fields-inside-wordpress-permalinks/" rel="nofollow ugc">add custom fields to permalinks</a> and requires no technical experience.</li>
<li>Extra Redirects Define extra redirects (aliases) for any post, page, or term. Additionally, you may assign a redirect URL to each post/term, which will take users to any external URL address.</li>
</ul>

Permalink Manager Lite

It works like charm. But need another plugin to edit the author slug. It would be best if there were an author slug edit option.

Great Plugin, But would be best if there were author slug edit option

Great plugin, easy to use


I tried to convince my client that his "simple request" was a total nightmare that might cost hundreds or even thousands of dollars to solve. 



Then I installed Permalink Manage Lite and was finished in about 3.9 seconds 😅 



10/10 would recommend.


Love at first site

Permalink Manager Lite by Maciej Bis is absolutely fantastic! With 100k+ installs and a perfect 5-star rating from 173 reviews, it's clearly the gold standard for URL management. Unlike WordPress's limited slug editing, this lets you customize entire URLs however you want. 

The automatic redirects from old URLs are a lifesaver for SEO. Works flawlessly with WooCommerce, Yoast, and WPML too. Bulk editing saves hours of work, and the ability to remove parent slugs creates cleaner URLs. Maciej keeps it updated regularly - this plugin is essential!

The Ultimate WordPress URL Control Plugin

Permalink Manager enhances WordPress’s built-in URL system, allowing you to change the URLs of native and custom post types and taxonomies.

Strict Permalinks vs Permalink Manager Lite