HTML Formatter & Minifier
Format, beautify, and minify HTML markup with configurable indentation (2 spaces, 4 spaces, tabs). 100% client-side with zero script execution.
How to Use the HTML Formatter & Minifier
Paste your raw, minified, or unformatted HTML into the editor, select your preferred indentation, and click "Format HTML" or "Minify HTML". The formatted markup is rendered safely as plain text.
Formula & Calculation Method
HTML Tokenization: Tags, Void Elements, Text Nodes, Comments, and Doctype preservationApplies deterministic indentation based on tag hierarchies without executing embedded scripts or rendering unescaped elements.
Calculation Examples
Single-line Markup to Structured HTML
Minification
Frequently Asked Questions
Is it safe to format sensitive HTML code?
Yes, 100%. The formatting engine parses HTML strictly as text tokens directly in your browser. No HTML is ever rendered, executed, or transmitted to any server.
Does the formatter support self-closing and void tags?
Yes. Standard HTML5 void elements like <img>, <br>, <hr>, <input>, and <meta> are handled correctly without introducing artificial closing indentation.
Can I choose between spaces and tabs?
Yes. You can choose between 2 spaces, 4 spaces, or hard tabs depending on your coding standard.