The Content Cleaner plugin is an all-in-one tool for automatically removing non-printable characters from content and
title fields. After building WordPress sites for many years, one problem that consistently plagues my clients (especially
the less tech-savvy ones) is non-printable characters in their content or in their titles. This plugin works by running
a regular expression find and replace to clean up post content, post titles, and even Advanced Custom Fields. It’s
extremely lightweight and works without any setup required.