HTML Formatter, Beautifier & Minifier
Paste an HTML document or fragment. Prettier lays out nested markup for review, while the minifier removes comments and safe formatting whitespace.
Tool input stays in your browserDid you know · Data
Quicksort averages O(n log n) but degrades to O(n²), so standard libraries usually ship a hybrid sort.
HTML input
you edit—Formatted HTML
read only—A real HTML formatter
Formatting uses Prettier's HTML parser, not a regular expression. It understands elements, attributes, inline content, raw script and style blocks, and malformed markup well enough to produce consistent, reviewable output.
Conservative minification
Minify removes ordinary comments and formatting whitespace between tags without renaming classes, changing attributes, or touching pre, textarea, script, and style blocks. Always test production templates whose rendering intentionally depends on exact whitespace.
Your templates stay local
HTML can include unpublished copy, internal endpoints, and server template syntax. Both formatter engines run in the browser bundle. InTab never receives the markup.