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Use the fields in the tool above and keep units and formats consistent.
Re-indent minified or messy HTML so nested tags are easy to read. See before and after examples, plus the whitespace cases where formatting can shift layout.
View source on most production sites and you will see markup squeezed onto a few long lines. Template output and CMS editors also leave uneven indentation behind. An HTML formatter re-indents the code so each nested element sits one level deeper than its parent.
That makes it easier to spot an unclosed <div>, find a misplaced closing tag or review a pull request. Paste your markup, set the indent size and format.
<nav><ul><li><a href="/">Home</a></li><li><a href="/tools">Tools</a></li></ul></nav>
<nav>
<ul>
<li><a href="/">Home</a></li>
<li><a href="/tools">Tools</a></li>
</ul>
</nav>
Block elements such as <nav>, <ul> and <li> get their own lines. Inline elements such as <a> usually stay on the same line as their text. The page renders the same in the browser.
Two spaces is the most common indent for HTML, and it is Prettier's default. Page builders such as Elementor can produce very deep nesting that pushes code far to the right. In that case, a 2-space indent with a wider line length keeps the markup readable.
HTML mostly ignores extra spaces and line breaks, but not everywhere. Knowing the exceptions stops a formatter from quietly changing your layout.
<pre> and <textarea>: whitespace inside is shown exactly. A careful formatter should leave these untouched.<span> or <img> tags can create a visible gap.After formatting, compare the page in a browser against the original before you commit.
Formatting is a quick way to find a tag that was never closed. Look for where the indentation starts to drift. If the closing </body> sits further right than the opening <body>, something above it is still open. Work upwards until the levels line up again.
An HTML formatter tidies layout. It does not guarantee your markup is correct. Browsers are forgiving, so a formatter may silently close an open tag or move a stray element. Run the W3C Markup Validation Service when you need a proper check for errors.
Formatted HTML helps several groups. Developers review diffs faster. Email marketers untangle table-heavy newsletter templates. SEO auditors read the head section to confirm title, canonical and meta tags. For pages going live, minify the HTML again to save bytes. The ToolsMate HTML formatter is for the reading and editing stage in between.
One last check: comments and Outlook conditional comments should survive formatting untouched. If your templates rely on them, confirm they are still there afterwards.
Use the fields in the tool above and keep units and formats consistent.
Review the result shown in the output area.
Confirm that the result matches your situation before using it for a decision.
HTML tags and whitespace are normalized for a simple readable format.This describes the core logic used by the tool. Check any assumptions that may affect your result.
Use accurate inputs and keep units consistent.
Review the assumptions before using the result for a decision.
Compare important results with an independent or official source.
Usually not, because browsers collapse most whitespace between tags. Exceptions include content inside pre and textarea elements. An added line break between inline elements like images or spans can also introduce a small visible space.
They are two names for the same job: re-indenting markup and adding line breaks so the structure is readable. Some tools labelled beautifiers also format embedded CSS and JavaScript, so check which options the tool offers.
It may close obviously open tags while parsing, but it is not designed to repair markup. Results can differ from what you intended. Use an HTML validator to find structural errors, then fix them by hand before formatting.
Minifying removes comments and unneeded whitespace, which trims page weight slightly. With gzip or Brotli compression the saving is often small, but it still helps on large pages. Keep the formatted version in your source code for editing.
Open the HTML file and run Format Document from the command palette, or press the matching keyboard shortcut. VS Code has a built-in HTML formatter, and extensions such as Prettier offer extra configuration options.
Yes, and it helps a lot with nested table layouts common in email code. Be careful with inline styles and conditional comments for Outlook, since a formatter should keep them intact. Send a test email after formatting.
Images are inline elements, so a line break between two img tags becomes a space in the rendered page. Keep those tags on one line, or set the images to display as block in your CSS.
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