HTML Formatter
ConverterFormat and beautify HTML code with proper indentation. Supports DOCTYPE, void elements, raw text elements. Beautify or minify. 100% client-side.
About HTML Formatter
Format and beautify HTML code in your browser with configurable indentation (2, 4, 6, or 8 spaces). Uses the browser's native DOMParser to correctly parse HTML and reformat it with proper nesting — handles void elements like `<br>`, `<img>`, `<input>` (keeps them self-closing), raw text elements like `<script>` and `<style>` (preserves their content), and custom elements or web components. Attributes are sorted alphabetically for consistency. Toggle between beautify mode (indented, readable output) and minify mode (compact single-line output). 100% client-side processing — your HTML never leaves your browser. Ideal for cleaning up templated output, debugging malformed HTML, or standardizing code before code review.
How to Use
- Open the HTML Formatter tool page
- Enter or paste your data into the input area
- View the real-time results and use the copy button to get the output
Use Cases
- Code beautification — Format minified HTML into readable indented code for debugging and editing.
- Template cleanup — Format HTML templates to make tag structure clear and improve maintainability.
- Code review — Format HTML before code review to make diffs clearer and more focused.
FAQ
Does formatting affect HTML functionality?
No. Formatting only adjusts indentation and line breaks. HTML structure and functionality remain unchanged.
Does it support HTML5?
Yes. DOMParser supports HTML5 tags, custom elements, SVG, and more.
Are files uploaded to a server?
No. All processing happens in your browser locally. Files never leave your device.
Comments
Comments are stored locally in your browser. Configure Giscus for cloud-based comments.