Browse 79 Tools
Developer Tools Runs in your browser

Free Online HTML Formatter

Format, beautify, and minify HTML markup with customizable indentation, tag alignment, and void tag handling.

HTML Formatter Workspace
Active
Input HTML 0 chars
Formatted HTML Output 0 chars
Direct Answer HTML Formatter operates 100% locally in your web browser. Execute instant conversions and transformations with zero file uploads, no account registration, and complete privacy.

How to Use HTML Formatter

  1. Paste HTML Markup: Paste your raw, minified, or unformatted HTML into the left input workspace.
  2. Select Indentation: Choose 2 Spaces, 4 Spaces, Tabs, or Minify compact mode.
  3. Format Markup: Click 'Format HTML' to structure and indent opening and closing tags hierarchically.
  4. Copy or Download: Copy the formatted HTML code to clipboard or download formatted.html.

Frequently Asked Questions

Does the HTML Formatter handle self-closing / void elements?

Yes, HTML5 void tags like <meta>, <link>, <img>, <br>, <input>, and <hr> are formatted cleanly without expecting closing tags.

Can I minify HTML to reduce page load time?

Yes! Click the 'Minify' button to strip whitespace between elements and comments for production delivery.

Is my proprietary HTML code uploaded to your servers?

No, all parsing, formatting, and indentation happens 100% in your browser session.

Can I format HTML files directly?

Yes, click 'Open File' or drag and drop any .html or .htm file into the editor.

Last reviewed: October 2026 Learn about our architecture in How we process your files and mathematical Methodology.

Related Utilities

developer
CSS Minifier
Minify and compress CSS stylesheets to boost page speed.
Open Tool
developer
SQL Formatter
Beautify, indent, and format SQL queries cleanly.
Open Tool
developer
JSON Formatter
Beautify, indent, and format JSON strings instantly.
Open Tool
developer
XML Formatter
Beautify, indent, and format XML documents instantly.
Open Tool