Free Online HTML Formatter & Beautifier
Format and beautify your HTML markup in real-time. Paste any raw, minified, or messy HTML and get perfectly indented, color-coded output instantly. Supports HTML5, inline styles, scripts, and template syntax. No uploads, no servers, 100% private.
Processed entirely in your browser · No data uploaded
How to Use the HTML Formatter
Paste Your HTML
Copy your HTML markup from any source — your code editor, a web page, or email template. Paste it into the input editor.
Auto-Format Instantly
The tool automatically formats your HTML with proper indentation, line breaks, and color syntax highlighting. Tags, attributes, and content are clearly distinguished.
Copy or Download
Click the copy button to copy the formatted HTML to your clipboard, or download it as an .html file. Ready to use in your project or share with your team.
Powerful HTML Formatting Features
Everything you need to format and beautify HTML markup — all in one free tool.
Real-Time Formatting
See your HTML formatted instantly as you type or paste. No buttons to click — just paste and go.
Syntax Highlighting
Color-coded tags, attributes, values, strings, and comments make your HTML easy to read and debug at a glance.
Customizable Indentation
Choose from 2 or 4 space indentation to match your project's coding conventions.
Self-Closing Tag Support
Properly handles void elements like `<br>`, `<img>`, `<input>`, and self-closing tags like `<div />`.
Copy to Clipboard
Copy formatted HTML to your clipboard with a single click. Ready to paste into your code editor.
Download as File
Download your formatted HTML as an .html file. Perfect for saving templates or documentation.
Line Numbers
Every line is numbered for easy reference. Debug faster by sharing exact line numbers with your team.
100% Client-Side
All processing happens in your browser. Your markup never leaves your device — no uploads, no servers, no privacy concerns.
Why Use Our HTML Formatter
The simplest, fastest way to format HTML online. No sign-up, no limits, no data leaving your browser.
100% Free
No hidden fees, no premium plans, no usage limits. Format as much HTML as you need, as often as you want.
Privacy First
Your HTML markup never leaves your browser. Everything is processed locally — no server uploads, no data logging.
Smart Formatting
Intelligently indents nested elements while preserving inline elements like `<span>`, `<strong>`, and `<a>` on single lines.
Developer-Friendly
Handles HTML5, inline CSS, embedded JavaScript, SVG, and template syntax. Built by developers for developers.
Key Highlights
- No sign-up or registration required
- Processes everything in your browser — zero server uploads
- Handles HTML5, inline styles, scripts, and SVG
- Properly indents nested elements with customizable spacing
- Works on any device — desktop, tablet, or mobile
- Regularly updated with new features and improvements
Frequently asked questions
What is an HTML formatter?
An HTML formatter (also called an HTML beautifier or pretty printer) takes raw, minified, or messy HTML markup and reformats it with proper indentation, line breaks, and consistent structure. This makes HTML much easier to read, debug, and maintain.
Is this HTML formatter really free?
Yes, completely free. There are no hidden charges, no usage limits, and no premium features locked behind a paywall. Use it as much as you need, whenever you need it.
Is my HTML data secure?
Absolutely. All HTML processing happens entirely in your browser using JavaScript. Your markup is never sent to any server, stored, or logged. This means sensitive templates and content stay completely private.
What HTML features are supported?
The formatter supports HTML5, inline CSS (`<style>`), embedded JavaScript (`<script>`), SVG, HTML comments, void elements (`<br>`, `<img>`, `<input>`), self-closing tags, custom data attributes, and template syntax.
Does it preserve inline elements on one line?
Yes. Inline elements like `<span>`, `<strong>`, `<em>`, `<a>`, and `<b>` are kept on the same line when they don't contain block-level children. This keeps your formatted HTML compact and readable.
Can I customize the indentation?
Yes! You can choose between 2-space or 4-space indentation using the dropdown in the toolbar.
What size HTML documents can I format?
Our tool can handle HTML data up to approximately 10MB in size. For larger files, your browser may experience performance issues since everything is processed client-side.
Do I need to install anything?
No installation required. The HTML formatter works entirely in your web browser. Just open the page and start formatting. No downloads, no plugins, no setup.
Can I use this on my phone?
Yes, the tool is fully responsive and works on all devices — desktops, tablets, and smartphones. The interface adapts to your screen size for comfortable use anywhere.