Static Suffix – Site Wide .html Extension

Unit test your rewrite rules from the WordPress Admin.

Adds the ability to configure permalinks for custom post types using rewrite tags like %post_id% and %author%.

Debug Bar Rewrite Rules adds a new panel to Debug Bar that displays information about WordPress Rewrites Rules (if used).

Set Custom Permalink Editor on a per-post, per-tag per-page, and per-category basis.

A simple admin tool for inspecting rewrite rules.

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