HTML Formatter
Beautify or minify HTML with correct indentation.
HTML Formatter
Developer tool running locally in browser
What does HTML Formatter do?
Format HTML with proper nesting and indentation so structure is readable, or minify it by collapsing whitespace. Inline elements, pre blocks and script content are handled correctly rather than being mangled.
How to Use HTML Formatter
- 1Paste your HTMLA fragment or a full document.
- 2Choose format or minifyAnd set the indent width.
- 3Copy the resultOr download it as a file.
Key Features
- Indentation with configurable width
- Inline elements kept on one line rather than being broken apart
- pre, textarea, script and style content preserved exactly
- Minify mode that collapses safe whitespace
- Self-closing and void elements handled correctly
Frequently Asked Questions
Will formatting change how my page renders?
Almost never. The formatter avoids adding whitespace where it would be significant — inside pre and textarea, and between inline elements where a space would appear on screen.
Why is whitespace significant in HTML?
Because whitespace between inline elements collapses into a single rendered space. That is why breaking a line between two spans can shift the layout, and why the formatter keeps inline runs together.
Does it validate my HTML?
No, it formats. Broken nesting is preserved rather than corrected, since guessing your intent could change the page. Use a validator for conformance checking.
Should I minify HTML in production?
It helps a little, though gzip already handles repeated whitespace well. The bigger wins are usually in images, JavaScript and render-blocking CSS.
Input is processed in your browser and never transmitted. That said, treat any web page as untrusted for live production secrets — rotate anything you paste anywhere.
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