About this tool
Beautify raw HTML so you can read, review, and debug markup more easily in the browser.
HTML Formatter is most useful when copied markup is technically readable by browsers but hard for humans to scan. It gives developers a quick way to re-indent pasted templates, snippets, embeds, and generated fragments before debugging or sharing them in docs, tickets, or pull requests.
- Formats nested HTML with clean indentation.
- Useful for debugging pasted snippets and generated markup.
- Runs in the browser without sending code to a server.
How to use HTML Formatter
Paste the HTML snippet you want to clean up, run the formatter, and inspect the nested output before copying it back into your editor. If the markup still looks suspicious after formatting, use the result as a readable starting point for validation rather than assuming the formatter has fixed semantic HTML issues.
When this tool is useful
- Formats nested HTML with clean indentation.
- Useful for debugging pasted snippets and generated markup.
- Runs in the browser without sending code to a server.
Practical tips
Examples you can test
These examples show the kind of real input and reviewed output this tool is designed to support. Use them as a starting point before pasting your own production content, then compare the output with the destination system that will use the result. The goal is not only to produce a value, but to make the input assumptions, output format, and review step clear enough that the result can be trusted in a real workflow.
Format a compressed snippet
Example input
<div><h1>Title</h1><p>Copy</p></div>
Expected output
Indented HTML with nested tags on separate lines
Readable markup is easier to review before pasting into docs, templates, or issue comments.
Inspect copied embed code
Example input
<iframe src="..."></iframe><script>...</script>
Expected output
Formatted embed structure
Formatting helps review structure, but it does not make third-party embeds safe by itself.
Validation checklist
Run through these checks before copying the result into a CMS, codebase, spreadsheet, campaign, support ticket, or production document. Small formatting differences, unit assumptions, hidden whitespace, and platform-specific rules are common sources of mistakes in quick browser tools, so the final review should happen in the same context where the output will be used.
- Validate important markup after formatting if semantic correctness matters.
- Review scripts and iframes from unknown sources before using them.
- Keep the original snippet when debugging a formatting or escaping issue.
Why people use this tool
Searches for html formatter and html beautifier usually come from debugging tasks, not passive browsing. A strong formatter page helps people move from messy markup to readable structure quickly, especially when they are reviewing pasted snippets, CMS output, or template fragments under time pressure.
Related search intents
html formatter, html beautifier, format html online, pretty print html, indent html code.