HTML Cleaner - Clean & Tidy HTML, CSS, JavaScript Online

About This Module

HTML Cleaner is a free, browser-based tool for tidying messy HTML markup. Whether you've pasted content from Microsoft Word, Google Docs, email editors, or CMS platforms, this tool strips out the junk — inline styles, empty tags, proprietary classes, redundant spans, and HTML comments — leaving you with clean, semantic markup ready for your website or application. All processing runs client-side in your browser; your content is never sent to a server.

What Is HTML Cleaner?

HTML Cleaner provides a dual-editor interface: a visual (WYSIWYG) editor where you can paste and preview formatted content, and a source-code editor that displays the raw HTML. Changes in either editor are synchronised. Twelve configurable cleaning options let you control exactly what to remove or transform. The tool can strip inline styles, classes and IDs, HTML comments, empty elements, consecutive non-breaking spaces, span wrappers, image tags, and links (keeping the text). It can also replace presentational tags like <b> and <i> with semantic <strong> and <em>, convert table-based layouts into div-based structures, and format the output with proper indentation for readability.

How It Works

Paste your messy content into the visual editor — rich formatting from Word or Docs is preserved for preview. The source editor updates automatically to show the underlying HTML. Tick the cleaning options you need, then click Clean HTML to process the markup. The cleaned result appears in both editors instantly. Use the Copy button to copy the clean source code to your clipboard. A built-in Find & Replace panel supports up to six pairs of custom substitutions for bulk string replacement. Click Undo to revert the last clean operation if needed.

Best Use Cases

CMS content migration: Paste content from Word, Google Docs, or legacy CMS editors and clean it before publishing to WordPress, Shopify, or any platform.
Email template cleanup: Strip bloated markup from email builder exports to reduce file size and improve rendering across mail clients.
Web development: Tidy client-supplied HTML content by removing inline styles, classes, and comments before integrating it into your codebase.
Accessibility improvement: Convert presentational tags to semantic equivalents and remove empty elements to improve screen reader compatibility.

Fields and Input Explanations

Visual Editor: A rich-text area where you paste or type formatted content. Supports standard keyboard shortcuts for bold, italic, and undo.
Source Code: Displays the raw HTML of the visual editor. You can also edit the HTML directly here.
Remove inline styles: Strips all style="" attributes from HTML elements.
Remove classes & IDs: Removes class and id attributes from all elements.
Remove HTML comments: Deletes all  comment blocks from the source.
Remove empty tags: Deletes elements with no content or only whitespace inside.
Remove consecutive  s: Replaces multiple consecutive non-breaking spaces with a single regular space.
Remove span tags: Unwraps all <span> elements, keeping their inner content.
Convert b/i to strong/em: Replaces presentational tags with their semantic HTML5 equivalents.
Remove images: Deletes all <img> tags from the markup.
Remove links: Unwraps <a> tags, keeping the link text but removing the hyperlink.
Replace tables with divs: Converts <table>, <tr>, and <td> elements into <div> elements.
Remove ALL tags: Strips every HTML tag, leaving only plain text content.
Format & indent: Re-indents the cleaned HTML with proper line breaks and nesting for readability.
Find & Replace: Six pairs of input fields for bulk custom string substitutions within the HTML source.