HTML Formatter - Beautify & Indent HTML Code
Beautify and auto-indent messy HTML markup for readability.
Processed 100% locally in your browser. Never sent to our server.
About HTML Formatter - Beautify & Indent HTML Code
Parses HTML DOM structure and re-renders with consistent indentation and line breaks.
What Can You Use This Tool For?
Software engineers, web developers, and API designers use HTML Formatter to format production data, debug network requests, validate syntax errors, and streamline daily coding workflows without risking data leaks.
How to Format and Beautify HTML
1. Paste your unformatted or minified HTML code.
2. Select your desired indent size (2 or 4 spaces).
3. The editor formats nested HTML tags, attributes, and scripts cleanly.
Usage Examples
Formatting Nested Divs
Input: <div><h1>Title</h1><p>Content</p></div> Output: <div> <h1>Title</h1> <p>Content</p> </div>
Frequently Asked Questions
Can I use this HTML Formatter offline without an internet connection?
Yes, once the web page is loaded in your browser, all parsing and code processing execute client-side using JavaScript without requiring active server connections.
Does Numvax log, save, or transmit my code/data?
Never. Numvax operates under a strict client-side privacy architecture. All operations execute strictly inside your local browser memory.
Is there a file size or character limit for this tool?
There is no artificial limit. The tool can process payloads as large as your device memory and browser can handle.
Is this HTML Formatter free for commercial use?
Yes, all Numvax developer tools are 100% free for personal, educational, and commercial development workflows with no subscriptions or accounts required.
Does it format inline JavaScript and CSS?
Yes. HTML script tags and style tags are formatted cleanly alongside HTML elements.
Are self-closing tags supported?
Yes, modern HTML5 self-closing tags like <img />, <input />, and <br /> are recognized.
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