Format and prettify HTML code with proper indentation and structure.
HTML Input
Formatted Output
⏳ Loading beautifier library…
How to Use
1
Paste HTMLPaste minified or messy HTML code into the Input field.
2
Set optionsChoose indent size (2/4 spaces or tab), line wrap length, and other preferences.
3
Click BeautifyThe formatted HTML appears in the Output with proper indentation.
4
Copy resultClick "Copy Result" to copy the beautified HTML to your clipboard.
5
Use in editorPaste the formatted HTML into your code editor or IDE.
📌 All processing is done locally in your browser using js-beautify. No code is uploaded to any server.
About HTML Beautifier
Working with code and configuration files often means switching between formats, encoding strings, or validating syntax. HTML Beautifier eliminates the need for desktop software or command-line utilities by giving you a clean, instant interface right in your browser. Paste your input, get your result — no accounts, no installations, no data leaving your machine.
Frequently Asked Questions
This tool uses js-beautify, one of the most popular open-source code formatting libraries used in editors like VS Code and Atom. It correctly handles complex HTML including nested elements, attributes, and mixed content.
No, it only formats the HTML without validating it. Invalid HTML (unclosed tags, wrong nesting) may produce unexpected output. Use the W3C HTML Validator to check for errors.
When enabled, inline elements like <span>, <a>, <strong> stay on the same line as surrounding text instead of being placed on separate lines. This preserves the visual rendering of text with inline elements.
This sets the maximum line length before content wraps. For example, at 120 characters, long attribute lists or text content will wrap to the next line to keep code readable in standard editors.