Title: MarkuClean – AI Markup Cleaner Author: Ivijan-Stefan Stipic Published: 13, Marzu de 2026 Last modified: 9, Abril de 2026 --- Guetar plugins ![](https://ps.w.org/markuclean-markup-cleaner/assets/banner-772x250.jpg?rev=3481927) ![](https://ps.w.org/markuclean-markup-cleaner/assets/icon-256x256.jpg?rev=3481927) # MarkuClean – AI Markup Cleaner By [Ivijan-Stefan Stipic](https://profiles.wordpress.org/ivijanstefan/) [Download](https://downloads.wordpress.org/plugin/markuclean-markup-cleaner.1.0.2.zip) * [Details](https://ast.wordpress.org/plugins/markuclean-markup-cleaner/#description) * [Reviews](https://ast.wordpress.org/plugins/markuclean-markup-cleaner/#reviews) * [Installation](https://ast.wordpress.org/plugins/markuclean-markup-cleaner/#installation) * [Development](https://ast.wordpress.org/plugins/markuclean-markup-cleaner/#developers) [Support](https://wordpress.org/support/plugin/markuclean-markup-cleaner/) ## Description MarkuClean Markup Cleaner cleans and normalizes post content in supported WordPress editing contexts. It removes unwanted characters, markup artifacts, and copy-and-paste leftovers from post title, content, and excerpt values. This includes known special characters and malformed sequences commonly introduced by AI-generated content and external copy tools, such as mis-encoded quotes, dashes, ellipses, non-breaking spaces, zero- width characters, and numeric data-start/data-end markers. The plugin helps keep content consistent and clean where cleanup is supported. It works with standard WordPress content edited in Gutenberg and TinyMCE-based workflows. For safety, builder-managed content is skipped. Elementor, WPBakery / Visual Composer, Beaver Builder, Divi Builder, Oxygen, Bricks, SiteOrigin, and similar editors often store structured markup, shortcode trees, JSON-like payloads, or hidden metadata. The plugin returns that content unchanged. ## Screenshots * [[ * [[ * [[ ## Installation Install from WordPress admin: 1. Go to Plugins > Add New. 2. Search for “MarkuClean Markup Cleaner”. 3. Install and activate the plugin. Manual installation: 1. Upload the plugin folder to `/wp-content/plugins/`. 2. Activate the plugin in WordPress admin. 3. Open Settings > AI Content Cleaner and configure the enabled post types and cleanup modes. ## FAQ ### Why does the plugin not work with Elementor or other builders? This is intentional. Builders store structured markup, shortcodes, JSON-like payloads, and metadata that the plugin does not modify. ### What characters does the plugin remove or normalize? It can normalize configured character replacements such as mis-encoded quotes, dashes, ellipses, non-breaking spaces, zero-width characters, and similar copy artifacts. It also removes numeric data-start/data-end markers and selected AI paste remnants where supported. ### Does it change existing content permanently? Only when save cleanup is enabled and the current content passes the safety checks. Frontend cleanup and tester previews do not change stored content. ### Can I limit it to specific post types? Yes. Enabled post types are configured in the plugin settings and are enforced across supported frontend, editor, and save-time flows. ### What is the difference between display cleanup and save cleanup? Display cleanup changes frontend output only and does not write to the database. Save cleanup modifies stored content when it is enabled and the current content passes the safety checks. ### Is it safe to use on live websites? It is designed to skip unsupported contexts and builder-managed content. Use the tester first and review save cleanup settings before applying cleanup to existing content. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “MarkuClean – AI Markup Cleaner” is open source software. The following people have contributed to this plugin. Contributors * [ Ivijan-Stefan Stipic ](https://profiles.wordpress.org/ivijanstefan/) * [ INFINITUM FORM ](https://profiles.wordpress.org/creativform/) [Translate “MarkuClean – AI Markup Cleaner” into your language.](https://translate.wordpress.org/projects/wp-plugins/markuclean-markup-cleaner) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/markuclean-markup-cleaner/), check out the [SVN repository](https://plugins.svn.wordpress.org/markuclean-markup-cleaner/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/markuclean-markup-cleaner/) by [RSS](https://plugins.trac.wordpress.org/log/markuclean-markup-cleaner/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.0.2 * Fix: prevent fatal errors with legacy WPBakery / Visual Composer on PHP 8.3 * Fix: harden all WordPress hook callbacks against unexpected input types * Fix: ensure wp_insert_post_data callbacks are safe under legacy conditions * Improvement: extend legacy WPBakery / Visual Composer detection * Improvement: increase overall runtime compatibility with older plugins and themes #### 1.0.1 * Fix: Save cleanup is now truly opt-in, no stored content is modified when disabled * Fix: Removed hardcoded “ChatGPT” text removal from sanitizer * Improvement: DOM cleanup now triggers only on structural AI/UI markers, not keywords * Fix: Prevent unintended content mutation in supported editors (Gutenberg, Classic) * Fix: Sidebar preview default value is now consistent across settings, UI, and runtime * Fix: Regex/replacement fields now preserve valid patterns (<, >, etc.) * Fix: PHP version requirement comment aligned with actual minimum version * Improvement: Updated admin UI examples to avoid misleading cleanup rules * Improvement: Increased overall sanitizer safety and reduced false-positive cleaning #### 1.0.0 * Initial release. ## Meta * Version **1.0.2** * Last updated **3 díes ago** * Active installations **Fewer than 10** * WordPress version ** 5.8 or higher ** * Tested up to **6.9.4** * PHP version ** 8.0 or higher ** * Language * [English (US)](https://wordpress.org/plugins/markuclean-markup-cleaner/) * Tags * [AI](https://ast.wordpress.org/plugins/tags/ai/)[classic editor](https://ast.wordpress.org/plugins/tags/classic-editor/) [content cleanup](https://ast.wordpress.org/plugins/tags/content-cleanup/)[gutenberg](https://ast.wordpress.org/plugins/tags/gutenberg/) [markup](https://ast.wordpress.org/plugins/tags/markup/) * [Advanced View](https://ast.wordpress.org/plugins/markuclean-markup-cleaner/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/markuclean-markup-cleaner/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/markuclean-markup-cleaner/reviews/) ## Contributors * [ Ivijan-Stefan Stipic ](https://profiles.wordpress.org/ivijanstefan/) * [ INFINITUM FORM ](https://profiles.wordpress.org/creativform/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/markuclean-markup-cleaner/)