Free HTML Formatter & Beautifier Tool Online
Format and beautify HTML code with clean indentation and readable structure directly in your browser.
IN: Raw HTML · OUT: Formatted HTML · RUNS: 100% in your browser
<div class="card"> <h1>Hello</h1> <p>Some text here.</p> </div>
Frequently asked questions
Will this fix broken or invalid HTML?+
The formatter focuses on indentation and readability rather than repairing structurally invalid HTML, such as unclosed tags. Severely malformed markup may format unpredictably.
Does it minify HTML too?+
This tool is focused on beautifying (adding readable indentation). For minification, remove the added whitespace manually or use a dedicated minifier — beautifying and minifying are opposite goals.
Can I control the indent size?+
Yes, switch between 2-space and 4-space indentation using the buttons above the input.
Does it preserve inline JavaScript and CSS inside the HTML?+
Yes, content inside <script> and <style> tags is preserved as-is; the formatter primarily restructures the surrounding HTML tags and attributes.
Is my HTML uploaded to a server?+
No, formatting runs entirely client-side using a JavaScript beautification library, so your markup never leaves your browser.
Can I format HTML fragments, not just full documents?+
Yes, you don't need a full <html><head><body> structure — partial fragments like a single <div> tree format correctly too.