Root Relative URLs is a WordPress plugin designed to simplify the handling of URLs across different environments. This tool converts all URLs to root-relative formats, allowing developers to transition seamlessly between staging and production environments without the need for complicated hacks or risky configurations. It eliminates the issues associated with links redirecting back to the original site URL when browsing from local or network resources. Furthermore, it enhances the tinyMCE editor by ensuring that all inserted links and media reference the correct root URL, minimizing the risk of referencing incorrect resources when pushing content changes.

With support for path-based MU installations, this plugin does not extend to domain-based installations due to limitations in WordPress architecture. The latest updates address critical issues, such as the infinite redirect problem stemming from a core WordPress bug. Additionally, users can now blacklist certain URLs or partial URLs, allowing for dynamic absolute URLs to be used instead, which enhances compatibility with third-party plugins. Overall, Root Relative URLs provides a robust solution for managing URLs effectively in WordPress development.