MarkuClean – Remove AI Artifacts, Unicode & Copy-Paste Characters
Clean AI-generated text, broken characters, Unicode issues, invisible characters, and copy-paste artifacts.
Solid choice
MarkuClean is a solid plugin choice in 2026, with a few things worth checking first. It runs on 10+ sites, is rated 5/5 and was last updated 2 months ago, and scores 69/100 on our health check.
- Tested with the latest WordPress (7.1)
- Small user base (10+ active installs)
- Very few reviews so far
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where MarkuClean stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| AI | >100 |
| classic editor | >100 |
| content cleanup | >100 |
| gutenberg | >100 |
| markup | #76 |
Version adoption
Share of active sites per release.
Rating breakdown
★★★★★★★★★★ 5 from 1 reviews
About MarkuClean
From the official readme · v1.0.6Description
MarkuClean automatically cleans WordPress post titles, content, and excerpts by removing AI-generated artifacts, broken Unicode characters, invisible characters, copy-and-paste leftovers, and malformed markup before they are saved.
It detects and removes common issues introduced by AI writing tools, office documents, web pages, PDFs, and other external sources. This includes smart quotes, em dashes, ellipses, zero-width characters, non-breaking spaces, broken encoding sequences, and unwanted editor metadata.
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.
Features
- Cleans AI-generated text artifacts
- Removes invisible Unicode characters
- Fixes broken quotes, dashes, and ellipses
- Removes zero-width and non-breaking space characters
- Cleans malformed encoding sequences
- Removes copy-and-paste artifacts
- Supports Gutenberg and TinyMCE
- Automatically skips page builder content
- Works out of the box with sensible defaults
- Optional advanced settings
- Supports custom regular expression (regex) rules
Installation
Install from WordPress admin:
- Go to Plugins > Add New.
- Search for “MarkuClean Markup Cleaner”.
- Install and activate the plugin.
Manual installation:
- Upload the plugin folder to
/wp-content/plugins/. - Activate the plugin in WordPress admin.
- Open Settings > AI Content Cleaner and configure the enabled post types and cleanup modes.
Frequently asked questions
Does the plugin work with page builders?
Yes, where it is safe to do so. Some page builders store structured markup, shortcodes, JSON-like data, or internal metadata that should not be modified. When this content is detected, MarkuClean leaves it unchanged to help prevent unintended changes.
What characters does the plugin remove or normalize?
It can normalize configured character replacements, including mis-encoded quotes, dashes, ellipses, non-breaking spaces, zero-width characters, and other common copy-and-paste artifacts. It also removes numeric data-start/data-end markers and selected AI-generated text artifacts where supported.
Does it permanently modify existing content?
Only when Save Cleanup is enabled and the content passes the built-in safety checks. Display Cleanup and the Tester never modify stored content.
Can I limit cleanup to specific post types?
Yes. You can choose which post types are processed in the plugin settings. These settings apply consistently across supported frontend, editor, and save-time cleanup.
What is the difference between Display Cleanup and Save Cleanup?
Display Cleanup cleans content only when it is displayed and never writes changes to the database. Save Cleanup updates the stored content when enabled and the content passes the built-in safety checks.
Is it safe to use on live websites?
Yes. The plugin is designed to skip unsupported editing contexts and builder-managed content. Before enabling Save Cleanup for existing content, use the built-in Tester to review the results.
Changelog
1.0.6
- UX improvement
1.0.5
- Fix: updated Gutenberg Paste Cleaner compatibility for the always-iframed post editor in WordPress 7.1.
- Fix: paste handling now uses the active editor document for selection and insertion while preserving legacy editor behavior.
- Added cleanup of known UTM tracking parameters from URLs in sanitized HTML content.
1.0.4
- Added support for filtering out AI attributes from Grok and Gemini responses
1.0.3
- Compatibility: prepared plugin metadata, editor assets, and readme for WordPress 7.0.
- Compatibility: added backward-compatible Gutenberg sidebar fallback logic for both legacy and unified editor APIs.
- Fix: aligned the activation PHP requirement check with the declared PHP 8.0 requirement.
- Maintenance: replaced the non-standard dash in the plugin title with a standard hyphen.
- Maintenance: verified plugin files against current WordPress coding and compatibility expectations without altering existing functionality.
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
Screenshots
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FAQ
MarkuClean: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 12, 2026
Is MarkuClean free?
Yes. MarkuClean is free to download and use from the official WordPress.org plugin directory.
Is MarkuClean safe to use in 2026?
MarkuClean is a solid plugin choice in 2026, with a few things worth checking first. It runs on 10+ sites, is rated 5/5 and was last updated 2 months ago, and scores 69/100 on our health check.
How many websites use MarkuClean?
MarkuClean is active on 10+ WordPress websites and has been downloaded 941 times since it launched in March 2026. It was downloaded 136 times in the last 30 days.
Does MarkuClean work with WordPress 7.1?
Yes. The developer has tested MarkuClean up to WordPress 7.1.3, the latest release. It requires WordPress 5.8 or newer.
What PHP version does MarkuClean need?
MarkuClean requires PHP 8.0 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was MarkuClean last updated?
The latest version, 1.0.6, was released on August 20, 2026 (2 months ago).
Who makes MarkuClean?
MarkuClean is developed and maintained by Ivijan-Stefan Stipic.
What are the best alternatives to MarkuClean?
The most popular alternatives to MarkuClean are Elementor Website Builder (10M+ installs), All in One SEO (2M+ installs) and AI Agent by SiteGround (1M+ installs).
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