HTML Cleaner

Paste your raw HTML into the input box, select the cleaning options you need, and click Clean Code. Our free HTML cleaner tool instantly removes inline styles, CSS classes, ID attributes, event handlers, unwanted tags, and HTML comments — giving you lean, production-ready markup in seconds.

Key Features of the HTML Cleaner Tool

Remove Inline Styles & CSS Classes: Strip style="" and class="" attributes in one click — ideal for cleaning up copy-pasted content from Word, Google Docs, or email clients.
Remove Unnecessary Tags: Unwrap <span>, <div>, <font>, <strong>, <br>, table tags, and more while keeping your content intact.
Remove HTML, CSS & JS Comments: Clean out  HTML comments, /* */ CSS comments, and JavaScript comments from <script> blocks.
Remove Event Attributes: Strip all onclick, onmouseover, and other inline event handlers for cleaner, more secure markup.
Remove data-* and aria-* Attributes: Optionally remove data attributes and ARIA attributes when they are no longer needed.
Format HTML: Automatically indent and beautify your HTML code for improved readability and easier maintenance.
Minify HTML: Collapse whitespace and remove line breaks to reduce file size and improve page load speed.
Encode / Decode HTML Entities: Convert special characters like &, <, and > to their HTML entity equivalents, or decode them back.
Download or Copy Output: Copy the cleaned code to your clipboard or download it as an .html or .txt file.

Why Clean Your HTML Code?

Bloated HTML is one of the most common causes of slow page load times, poor SEO performance, and hard-to-maintain codebases. When you copy content from rich text editors like Microsoft Word, Google Docs, or email clients, they inject hundreds of unnecessary inline styles, font tags, and class attributes into your markup. This extra code:

Slows down your page: Every extra byte the browser has to parse adds to load time, which directly affects your Core Web Vitals score.
Hurts SEO: Search engines prefer clean, semantic HTML. Cluttered markup makes it harder for crawlers to understand your content hierarchy.
Makes maintenance harder: Messy code is difficult to read, debug, and update — especially when working in a team.
Increases security risk: Inline event handlers like onclick can be vectors for XSS attacks. Removing them is a good security practice.

How to Use the HTML Cleaner Tool

Paste your HTML into the input box, or click Paste to pull directly from your clipboard.
Select your cleaning options from the panel on the left — choose which attributes, tags, and comments to remove.
Click "Clean Code" (or press Ctrl+Enter) to process your HTML instantly.
Review the output — the reduction badge shows exactly how many characters were saved.
Copy or Download your cleaned code. You can also click Use as Input to chain multiple cleaning passes.

Frequently Asked Questions

What does this HTML cleaner tool do?

This free online HTML cleaner removes inline styles, CSS classes, ID attributes, event handlers, unwanted tags, and HTML/CSS/JS comments from your code. It can also format (beautify) or minify your HTML, and encode or decode HTML entities.

Can I format my HTML without removing anything?

Yes. Click the Format Only button to indent and beautify your HTML without removing any tags or attributes. This is useful for making minified or unreadable code easier to work with.

How does HTML minification work?

Minification collapses multiple spaces into one, removes line breaks, and strips whitespace between tags. The result is a single-line, compact HTML file that loads faster — especially useful for production environments.

Can I remove inline styles copied from Word or Google Docs?

Yes, this is one of the most common use cases. Enable Inline Styles, CSS Classes, and font tags in the options panel, then click Clean Code. All the messy formatting injected by Word or Google Docs will be stripped out, leaving clean semantic HTML.

Is my code safe? Does it get stored anywhere?

Your code is processed entirely in your browser using JavaScript — nothing is sent to any server. Your HTML never leaves your device, so it is completely private and secure.

Can I download the cleaned HTML as a file?

Yes. After cleaning or formatting, click the Download button (or press Ctrl+S). You can save the output as an .html file or a plain .txt file with a custom filename.

What is the "Use as Input" button for?

The Use as Input button moves the cleaned output back into the input box so you can run another cleaning pass on it. This is useful when you want to apply different sets of options in sequence — for example, first removing styles, then minifying the result.

Stop letting bloated HTML slow down your website. Use this free HTML cleaner tool to remove inline styles, strip unwanted tags, and produce clean, fast-loading markup — right in your browser, with no sign-up required.