HTML Formatter & Beautifier
Clean up unformatted, messy HTML markup into well-indented, readable code with customizable line wrapping.
Batch workspace
Format multiple files locally in one run.
How to use the HTML Formatter
Paste code or file
Paste your raw HTML text or upload directly.
Configure options
Choose indentation, dialect, or formatting preferences.
Format & export
Click format, then copy, download, or inspect in tree view.
What is a HTML Formatter?
Clean up unformatted, messy HTML markup into well-indented, readable code with customizable line wrapping. This tool re-indents and organizes code according to standard style conventions while checking for syntax validity. Everything executes 100% inside your browser, guaranteeing zero latency and complete privacy for API keys, user tokens, and confidential database schemas.
Options Explained
| Option | Description |
|---|---|
| Indent size | Number of spaces per indentation level. |
| Wrap line length | Maximum characters per line before wrapping attributes or nested tags. |
| Preserve empty lines | Maintains existing blank lines between major layout sections. |
Frequently Asked Questions
Does the HTML formatter fix broken or unclosed tags?
The formatter restructures markup into clean indentation and properly closes standard tags.
Does it format inline JavaScript and CSS tags?
Yes. Embedded <style> and <script> blocks are automatically indented according to their parent tag depth.
Is my HTML uploaded to a server?
No. All formatting is executed locally inside your browser with js-beautify. Nothing is transmitted.
Can I customize the line wrapping width?
Yes. Use the 'Wrap line length' option to configure where long lines break.
Can I download the formatted HTML file?
Yes. Click the 'Download' button below the editor to save your formatted HTML file instantly.