Change the URL Slug of Any Post Type
Changes the URL base of a post type registered by a theme or plugin, for example from /portfolio/ to /work/, including its archive.
Snippet Library
Custom Post Types & Fields snippets for WordPress
Snippets for custom post types, taxonomies and custom fields: register a post type, add meta boxes, show fields in lists and archives. For developers modeling content beyond posts and pages.
Change the URL Slug of Any Taxonomy
Changes the URL base of a category-style taxonomy registered by a theme or plugin, for example from /portfolio-category/ to /work-type/.
Remove the Post Type Slug From URLs
Gives a custom post type short URLs like example.com/web-design/ instead of example.com/services/web-design/, as pages have.