Skip to main content

HTML Markup Cleaner

Paste messy HTML and get clean markup without inline styles, classes, IDs, or embedded stylesheets, ready for your CMS.

Runs 100% in your browser

Shortcuts
Copy the output
Alt + Shift + C

Your input is saved in this browser only. Reset clears it.

How to use the Markup Cleaner

  1. Paste HTML copied from a word processor, website, or CMS.

  2. Click Clean Markup to strip styles, classes, IDs, and embedded stylesheets.

  3. Copy or download the cleaned HTML.

Example: Cleaning HTML pasted from a word processor

Input
<div style="font-family: Calibri; color: #333"><h2 class="MsoNormal" id="x1">Quarterly update</h2><p style="margin:0"><span lang="EN-US">Revenue grew <b>18%</b>.</span></p></div>
Output
<h2>Quarterly update</h2>
<p>Revenue grew 18%.</p>

Inline styles, classes, ids, and wrapper elements are gone; the heading, paragraph, and text remain, so your own stylesheet controls the look.

Frequently Asked Questions

What does the Markup Cleaner remove?

Inline style attributes, class and id attributes, embedded <style> blocks, and the wrapper tags that word processors and page builders add. What's left is the structural HTML: headings, paragraphs, lists, links, and emphasis.

Why does HTML pasted from Word or Google Docs look broken in a CMS?

Those editors export styling baked into the markup: fonts, colors, spacing, and proprietary attributes attached to every element. In a CMS that styling fights your site's stylesheet, which is why pasted content often renders with the wrong font or spacing. Stripping it lets your own CSS take over.

Will cleaning change my content?

No. The text, links, headings, and list structure are preserved; only presentational attributes and wrappers are removed. Check the result before publishing if the original relied on inline styles for meaning, such as color-coded text.

Is my HTML uploaded anywhere?

No. The cleaning runs in your browser with the DOM parser that's already there, so nothing is sent to a server. Your draft stays on your device.

About the Markup Cleaner

The Markup Cleaner is a powerful tool designed to clean and sanitize HTML code, making it suitable for content management systems (CMS), blog editors, and other platforms that may have strict HTML requirements or formatting preferences.

Free Developer Tools That Run in Your Browser explains why small, single-purpose utilities like this one exist.

How the Markup Cleaner Works

When you paste HTML content into the Markup Cleaner, it processes your code through several cleaning operations:

  1. Removes unnecessary inline styles that often come from word processors
  2. Strips out class and ID attributes that may conflict with your site's styling
  3. Eliminates embedded stylesheets and JavaScript
  4. Removes redundant or empty tags
  5. Preserves the essential structure and content
  6. Adds paragraph tags to text blocks without proper HTML structure

Common HTML Cleaning Problems Solved

Word Processor Bloat

Content copied from Microsoft Word, Google Docs, or other word processors often contains excessive styling and non-standard HTML that can break your website's layout. Our cleaner strips this bloat while preserving your content.

CMS Compatibility

Many content management systems have specific HTML requirements or restrictions. Clean HTML is less likely to cause formatting issues or security warnings in platforms like WordPress, Drupal, or custom CMS solutions.

When to Use the Markup Cleaner

  • Before pasting content from word processors into your CMS or blog editor
  • When migrating content between different platforms or systems
  • To standardize HTML from various sources for consistent styling
  • When working with content from WYSIWYG editors that generate messy code
  • To remove potentially harmful scripts or iframes from user-submitted content

Pro Tip

For the best results, review your cleaned HTML before using it in production. While our tool preserves the essential structure, you may want to make minor adjustments to ensure the content appears exactly as intended in your specific environment.