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HTML Formatter

HTML beautify / minify

InputHTML
Lines: 0Chars: 0
OutputHTML
Lines: 0Chars: 0

Overview: HTML Formatter is a professional tool for beautifying and minifying HTML code. It helps front-end developers tidy up one-line minified HTML and, in the other direction, compress HTML to reduce page size and improve load speed. It automatically recognises tag nesting, aligns attributes, preserves whitespace nodes and works with HTML5, XHTML and template fragments alike.

How to use: Step 1 — paste the HTML you want to process on the left, or click "Sample" to load a test example. Step 2 — the tool beautifies the code in real time, indenting by tag depth (2 spaces by default). Step 3 — click "Format" to explicitly trigger a full pass. Step 4 — click "Minify" to strip extra whitespace, newlines and comments (preserving necessary spaces) into a compact single-line result. Step 5 — the right panel supports one-click copy or download as a .html file.

Typical scenarios: Format server-rendered HTML during debugging to read it more easily; normalise the complex markup produced by Bootstrap or Tailwind before editing; expand one-line email templates for maintenance; minify HTML before deployment to reduce first-paint time; format Vue / React SSR output for SEO analysis.

Technical notes: Formatting uses lightweight rules rather than a full DOM parse, which suits most common structures. Whitespace inside <pre>, <code> or <textarea> is preserved as much as possible. Self-closing tags (<br />, <img />) are left untouched. HTML comments <!-- --> are preserved when beautifying and removed when minifying. Deep formatting of <script> or <style> content is not supported — use the dedicated JS or CSS tools for that.

Privacy: All formatting and minifying happens locally in your browser. The HTML you enter is never uploaded, so you can safely process intranet systems or production templates.

Frequently Asked Questions

How do I use HTML Formatter?
Step 2 — the tool beautifies the code in real time, indenting by tag depth (2 spaces by default). Step 3 — click "Format" to explicitly trigger a full pass.
What can HTML Formatter do?
Typical scenarios: Format server-rendered HTML during debugging to read it more easily; normalise the complex markup produced by Bootstrap or Tailwind before editing; expand one-line email templates for maintenance; minify HTML before…
Is my data private when I use HTML Formatter?
The HTML you enter is never uploaded, so you can safely process intranet systems or production templates. The HTML you enter is never uploaded, so you can safely process intranet systems or production templates.
What technical details should I know about HTML Formatter?
Whitespace inside <pre> , <code> or <textarea> is preserved as much as possible. Self-closing tags ( <br /> , <img /> ) are left untouched.