Developer tools

Inline CSS to Classes

Paste HTML full of inline style attributes and get back clean markup plus a matching CSS block, with identical styles automatically sharing one class.

Cleaned HTML

Generated CSS

How to use the inline CSS to classes converter

  1. Paste your HTMLDrop in a fragment of markup that uses style="..." attributes.
  2. Press ConvertEvery inline style is pulled out into a named class, reusing classes for identical styles.
  3. Copy both outputsPaste the cleaned HTML and the generated CSS into your project.

Why move inline styles into classes

Inline styles can't be reused, are hard to override, and clutter markup. Extracting them into classes makes your CSS maintainable and lets the browser cache and reuse the same rule everywhere it applies.

Deduplication

Elements sharing the exact same inline style are automatically merged into a single class.

Existing classes kept

If an element already has a class attribute, the new class is appended rather than replacing it.

Client-side only

Parsing happens with the browser's own DOMParser, so nothing you paste ever leaves your device.

Ready-to-paste CSS

Each generated class becomes a normal CSS rule you can drop straight into a stylesheet.

Inline CSS to Classes Converter FAQ

What does this tool actually change?

It scans your HTML for elements with a style attribute, removes that attribute, adds a generated class name instead, and writes the original declarations into a CSS rule for that class.

Will identical inline styles share one class?

Yes, if two elements have the exact same inline style text, they are given the same generated class so the CSS output stays small.

Does it keep existing class attributes?

Yes, the generated class name is appended alongside any class the element already had, rather than replacing it.

Does this run on a server?

No, your HTML is parsed and rewritten entirely in your browser using the DOMParser API. Nothing is uploaded anywhere.

Can I rename the generated classes?

The tool generates simple names like cls-1, cls-2 and so on; you can rename them yourself after pasting the output into your project.

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