🔒 100% Client-Side Engine: Your code and data never leave your browser. All formatting and processing happen locally in your device's memory.

HTML Formatter & Code Beautifier

Free online HTML formatter and code beautifier. Indent, format, and structure messy HTML markup 100% client-side.

Lines: 0 | Chars: 0
Lines: 0 | Chars: 0

HTML Formatter & Beautifier: DOM Tree Indentation & Void Element Syntax

HTML Formatter parses raw markup into a structured Document Object Model (DOM) tree, applying hierarchical 2-space indentation. It normalizes void elements (like
, , ), aligns attributes, and preserves 

 and