HTML Formatter & Minifier
Beautify nested HTML, compact snippets for transport, and catch common unbalanced tag mistakes before copying output.
Local processingYour input stays in this browser tab.
HTML input
Paste an HTML fragment to format or minify
HTML output
Formatted or minified HTML output
HTML output appears here.
Sample input and expected output
Input <section><h1>Hello</h1></section> formats into a readable multi-line snippet or minifies back into one compact line.
Validation behavior
The formatter checks for missing and mismatched closing tags before serializing the HTML fragment.