Browser tool Runs locally
HTML Formatter & Beautifier
Format and beautify HTML into clean, readable markup directly in your browser.
HTML input
0 chars⌘/Ctrl + Enter to format
Formatted HTML
Formatted HTML will appear here.Examples:
How to format HTML
- Paste HTML in the input panel.
- Choose the indentation.
- Click Format HTML.
- Copy or download.
What this HTML formatter does
- Re-indents nested elements consistently.
- Puts block elements on their own lines.
- Keeps inline elements flowing inline.
- Preserves comments, DOCTYPE, and structure.
- Leaves script, style, pre, and textarea content untouched.
Whitespace-sensitive HTML
<pre>- content preserved as-is.<textarea>- content preserved.<script>and<style>- raw text, not markup.
When formatting HTML is useful
Formatting helps whenever markup needs to be read by a person rather than just a browser: reviewing a page's structure before editing it, cleaning up markup pasted from a CMS or design tool, or stepping through output from a template engine to see exactly what was generated.
Practical examples
- Messy markup - a one-line block of nested divs and spans becomes readable, one element per line.
- CMS or template output - server-rendered HTML that arrives compressed onto a single line gets its structure back for review.
- Debugging - spotting an incorrectly nested element or a tag closed in the wrong place is far easier once each level of nesting has its own line and indent.
Reviewing formatted output
Check that the indentation depth matches the logical nesting you expect - a level that doesn't step in or out where it should often points to a missing or extra closing tag. Also confirm that whitespace-sensitive elements like pre and textarea look untouched, since reformatting their contents would be a functional change, not just a cosmetic one.
Frequently asked questions
- Does this HTML formatter upload my code?
- No. Parsing and formatting run entirely in your browser.
- Does it support fragments?
- Yes. Fragments are formatted without wrapper elements.
- Will formatting change how my page renders?
- No. Reindenting and rewrapping lines does not add, remove, or reorder any elements or text, so the rendered output stays the same. It only changes the whitespace between tags in the source.
- Will it mess up spacing inside a pre or textarea block?
- No. Content inside pre, textarea, script, and style elements is left exactly as written, since reindenting it could change how the page displays or behaves.
- Why does formatted CMS or template output still look odd in places?
- Content generated by a CMS or template engine sometimes mixes HTML with inline scripting tags or unclosed elements that browsers tolerate loosely. Formatting does its best with that structure but can't fully normalize markup that isn't well-formed to begin with.