Paste messy HTML and get it properly indented and nested. Minify to strip whitespace for production. Runs entirely in your browser.
This HTML formatter takes messy, minified, or hand-written markup and rewrites it with clean, consistent indentation and tag nesting — and it works the other way too, minifying HTML down to a single compact line when you need the smallest possible payload.
When you beautify, the tool walks through your markup tag by tag, increasing the indent level each time a block element opens and decreasing it when one closes. It understands void elements like <img>, <br>, <meta>, and <input> so they never push the indent in the wrong direction, and it keeps inline elements such as <a>, <strong>, and <span> on their own lines without breaking the surrounding structure. You choose whether each level is indented with two spaces, four spaces, or a tab, so the output matches your project's house style. Minifying does the reverse: it removes HTML comments, collapses repeated whitespace, and strips the gaps between tags to shrink the file. People use it to:
Everything happens locally in your browser — your markup is processed on your own device and nothing is ever uploaded to a server, so even private or unreleased HTML stays completely on your machine.
The formatter only reflows tag indentation — text inside <script> and <style> blocks is kept verbatim. For deep script/CSS formatting, use the JS Minifier or CSS Minifier tools.
No. Everything runs locally in your browser — your markup never leaves the page.
It strips HTML comments and collapses runs of whitespace, including whitespace between tags. It does not touch quoted attribute values or content inside <pre>.
Beautify adds line breaks and indentation so the markup is easy to read and edit, increasing the file size slightly. Minify does the opposite — it removes comments, collapses whitespace, and strips the gaps between tags to make the file as small as possible for production. Use beautify while you are working on the code and minify when you are ready to ship it.
It comes down to your project's house style rather than any technical rule. Two spaces keeps deeply nested HTML compact and is common in front-end projects, four spaces is more visually distinct, and tabs let each developer set their own display width in their editor. Pick the option that matches the rest of your codebase so the formatted output stays consistent.
Beautifying only adds indentation and line breaks between tags, which browsers ignore, so the visible result is unchanged in almost every case. The one thing to watch is whitespace-sensitive content: text inside <pre> and the spacing around inline elements can matter visually, which is why the minifier leaves <pre> content alone. For normal block markup, formatting is purely cosmetic.
Yes — that is one of the most common uses. Paste in markup copied from a build output, a CMS, an email template, or another file, choose an indent size, and click Beautify to get a consistently nested version. The formatter reflows the tag indentation while keeping text inside <script> and <style> blocks verbatim, so your inline code is preserved exactly as pasted.