Free Tool
HTML Formatter
Paste any HTML to instantly beautify it with proper indentation, or minify it to reduce file size. Handles void elements, comments, and deeply nested structures.
HTML Formatter & Beautifier
Indent
What is an HTML formatter?
HTML formatting adds consistent indentation to nested tags, making the document structure easy to read and edit. Minifying removes all unnecessary whitespace to reduce file size.
When to use it
Use formatting when reviewing or editing HTML you received from a CMS, template engine, or third-party tool. Use minifying before deploying static HTML to reduce bytes served.
Limitations
This formatter works on well-formed HTML. Malformed or incomplete fragments (unclosed tags, invalid nesting) may produce unexpected indentation results.
How to use
- Paste your HTML into the input area.
- Click "Format" to add indentation and line breaks, or "Minify" to strip whitespace.
- Copy the formatted result with the "Copy" button.
Frequently Asked Questions
- What does the HTML formatter do?
- It parses your HTML and rewrites it with consistent indentation, placing each tag on its own line. Void elements (br, img, input, etc.) are treated as self-closing and do not increase the indent level.
- What does minify do?
- Minification removes HTML comments and collapses all whitespace between tags to reduce file size for production use.
- Does it validate HTML?
- No — the formatter does not validate HTML. It reformats whatever you paste. Use a validator like the W3C Markup Validator for full compliance checking.