HTML Beautifier

Format minified or messy HTML into readable markup before debugging templates, editing generated output, or sharing snippets with a teammate. Useful for nested layouts, CMS output, and copied embed code.

Indent:

Input HTML296 B

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What is HTML Beautifier?

HTML beautification takes compressed or inconsistently spaced markup and restructures it into a clean hierarchy with proper indentation and line breaks. That makes it easier to follow nested sections, inspect attributes, and understand where a layout or template is going wrong.

This is especially useful when the HTML comes from page source, a CMS, an email builder, or another tool that outputs one large block. Beautifying does not change the DOM structure. It simply makes the existing markup readable enough to review, document, or edit safely.

How to Use HTML Beautifier

Paste your minified or messy HTML code

Choose indentation style (spaces or tabs)

Select indentation size

Click "Beautify" to format

Copy or download the formatted result

Common Use Cases

Frontend developers inspecting generated markup copied from page source or a browser devtools panel.
Content teams cleaning up HTML exported from editors, page builders, or email tools before reuse.
Engineers debugging nested templates where one missing wrapper or attribute is hard to spot in minified output.
Technical writers preparing readable markup examples for documentation or onboarding notes.
QA and support teams reviewing embed snippets or CMS output while reproducing a rendering issue.

Example Input and Output

Generated markup from a CMS or page builder becomes much easier to inspect once the nested structure is laid out clearly.

Compressed HTML

<section class="hero"><div class="container"><h1>Launch checklist</h1><p>Ship faster with a cleaner setup.</p><a class="btn primary" href="/start">Start now</a></div></section>

Beautified HTML

<section class="hero">
  <div class="container">
    <h1>Launch checklist</h1>
    <p>Ship faster with a cleaner setup.</p>
    <a class="btn primary" href="/start">Start now</a>
  </div>
</section>

Privacy

Beautification stays in the browser, which helps when the HTML includes unpublished copy, internal links, or environment-specific markup.

Workflow tip

If the snippet contains embedded JavaScript or CSS that is still hard to read, run those sections through the matching beautifier after you clean up the HTML structure.

Frequently Asked Questions

Will beautifying change my HTML structure?

No, beautification only adds whitespace and line breaks. The DOM structure remains identical.

Does it preserve inline styles and scripts?

Yes, inline content is preserved. For better results with embedded JS/CSS, use dedicated formatters.

Is my HTML uploaded to a server?

No. The beautifier runs locally in the browser, which is useful when you are inspecting internal templates, email markup, or unpublished landing-page code.

Can I use this on HTML copied from page source or a CMS export?

Yes. That is one of the most common uses. The tool is designed to make generated markup readable again so you can inspect nesting, attributes, and content blocks.

When should I use HTML Beautifier instead of HTML Minifier?

Use the beautifier when humans need to read or edit the markup. Use the minifier when you need a smaller output for production delivery or transport.

Can it help with debugging broken layouts?

Yes. Readable indentation makes it much easier to see where elements open and close, which often reveals missing wrappers, duplicated nodes, or malformed sections quickly.