How to Format HTML Online

Messy HTML is hard to read and harder to debug. Whether you copied markup from an email template, scraped a webpage, or received minified HTML from an API, formatting it with proper indentation makes the structure visible instantly.

Why Format HTML?

• Find unclosed tags: Indented HTML reveals missing closing tags that cause layout bugs.
• Understand nesting: Complex templates with nested divs and components become readable when formatted.
• Clean up generated code: CMS and WYSIWYG editors produce messy markup. Formatting makes it maintainable.
• Code review: Formatted HTML in pull requests is easier for teammates to review.

Before and After

Before (minified):

<div class="container"><header><h1>Title</h1><nav><a href="/">Home</a><a href="/about">About</a></nav></header><main><p>Content</p></main></div>

After (formatted):

<div class="container">
  <header>
    <h1>Title</h1>
    <nav>
      <a href="/">Home</a>
      <a href="/about">About</a>
    </nav>
  </header>
  <main>
    <p>Content</p>
  </main>
</div>

Format HTML in Your Editor

Most editors have built-in formatting. In VS Code, press Shift+Alt+F (Windows) or Shift+Option+F (Mac). For standalone files or quick checks, an online tool is faster—no configuration needed.

Format HTML Online

Use our HTML Formatter to paste any HTML and get properly indented output. Works with HTML5, email templates, and partial snippets. No signup, runs in your browser.

Need to minimize HTML for production? Use HTML Minifier to strip whitespace and reduce file size. For CSS inside your HTML, try CSS Formatter. Check all Formatters for JavaScript, JSON, SQL, and more.