Free Online HTML Formatter
Format and beautify your HTML code instantly with our free online HTML formatter. Clean unorganized markup and fix indentation directly in your browser.
About HTML Formatter
The Doffl HTML Formatter is an online utility designed to quickly clean up, organize, and indent raw or minified HTML code. Whether you are debugging complex layouts, reviewing legacy templates, or preparing markup for production, this tool converts chaotic source code into readable, well-structured syntax in seconds.
Because the formatter runs entirely in your web browser, your markup processes immediately without any server-side uploads or data storage. It is completely free, requires no account setup, and works on any device without software installations.
Key features
- Configurable indentation using spaces or tab characters
- Fast client-side processing directly in your browser
- Cleans minified, unformatted, or nested HTML markup
- One-click copy to clipboard and quick clear actions
- Preserves inline scripts and embedded CSS styles
- Completely free to use with no account required
How to use HTML Formatter
- Paste your unformatted or minified HTML into the input field.
- Select your preferred indentation style and spacing.
- Click the format button to beautify your markup.
- Copy the clean, indented HTML directly to your clipboard.
Who is it for?
- Frontend developers unminifying templates or legacy web page code
- Web designers cleaning up messy nested markup from CMS exports
- Students learning web development and reviewing structured HTML layout
- Email marketers fixing tag hierarchy in HTML newsletter templates
Frequently asked questions
Does this HTML formatter send my code to a server?
No, the tool operates entirely on your device using client-side JavaScript. Your markup remains private and is never transmitted or stored on external servers.
Can this tool format HTML with embedded CSS and JavaScript?
Yes, it formats your HTML structure while safely preserving the contents of inline style and script tags.
Is there a file size limit for formatting HTML?
There are no hard server limits since the tool executes in your browser. Performance depends primarily on your local device memory.
Can I format minified HTML back into readable code?
Yes, the formatter expands minified single-line HTML documents into properly indented, multi-line structures for easy reading and editing.
Is this tool free to use?
Yes, the HTML formatter is completely free to use with no account creation or subscription needed.