HTML Formatter & Beautifier — Format HTML Online Free

HTML Formatter & Beautifier — Format HTML Online Free. Free online HTML formatter and beautifier. Paste messy HTML and get clean, properly indented code instantly — all in your browser, no uploads.

Our free HTML formatter instantly beautifies any HTML code — turning minified or messy markup into clean, properly indented output.

Whether you need to debug a DOM structure, review meta tags, or clean up a scraped page, our HTML beautifier handles it in one click. Just paste and format.

All HTML formatting runs entirely in your browser — your source code and templates never leave your device. No server uploads, no sign-up. For the reverse operation, use our HTML Minifier to compress your formatted HTML.

Related tools: HTML Entities, Markdown to HTML. Our free HTML formatter instantly beautifies and indents any HTML string — turning minified or messy markup into clean, readable code with proper nesting.

Companion tool: HTML Minifier to compress your markup before deployment.

Use Cases Beautify minified HTML from production builds for debugging Clean up auto-generated HTML before committing to version control Format HTML email templates for easier editing Indent and structure HTML snippets from APIs or scrapers Related: HTML Entities , HTML Minifier , Markdown to HTML .

Frequently asked questions

How do I beautify HTML online?

Paste minified or messy markup into the Input HTML box. The Formatted HTML panel updates as you type, putting adjacent tags on separate lines and indenting nested elements. Click Copy HTML to copy the result, or Clear to empty the input.

What indentation does the HTML formatter use?

Two spaces per nesting level. The indentation style and width cannot be changed; if you need tabs, replace the leading spaces in your code editor after copying.

How are br, img, meta and other void tags indented?

Void elements never contain anything, so they do not add an indentation level, with or without a trailing slash. This covers area, base, br, col, embed, hr, img, input, link, meta, source, track and wbr; the tags after them stay at the same level. Custom elements must still have a closing tag to indent correctly.

Does the formatter fix or validate my HTML?

No. It only inserts line breaks between tags and adds indentation; it does not validate, reorder or repair markup, and it does not format inline CSS or JavaScript. Line breaks and indentation already in your input are kept.

Is this the opposite of an HTML minifier?

Yes. Use this tool to make compressed HTML readable, and the HTML Minifier tool to strip whitespace and comments for production. Both run entirely in your browser, so your markup is not uploaded.

How to use this online tool

HTML Formatter & Beautifier — Format HTML Online Free is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

HTML Formatter & Beautifier — Format HTML Online Free keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use HTML Formatter & Beautifier — Format HTML Online Free for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.