Front-End Code Beautifier
Restore structure to minified or tangled HTML and CSS documents. Generate perfectly indented, human-readable code blocks instantly.
HTML/CSS Formatter
Beautify and clean up your web code
Instant Structural Formatting
Minified or badly indented markup is hard to read and debug. This formatter re-indents it in your browser, so your code is never uploaded to a server.
Automated Indentation
Our DOM parser calculates exact mathematical node depth, actively repairing missing brackets or entirely broken indent cascades across thousands of lines.
HTML and CSS in One Tool
Switch between formatting HTML and formatting CSS without opening a second tool.
Zero Network Risk
Have sensitive class names or proprietary application architecture? Process it here safely. The formatting libraries run 100% locally in your active Javascript scope.
When Formatting Saves Time
Finding Unclosed Tags
If a layout breaks and you suspect a missing closing <div>, indent the markup here. A tag that never closes shows up as indentation that keeps drifting to the right.
Readable Snippets
Tidy minified or copy-pasted HTML and CSS before sharing it in a code review, bug report or tutorial so others can read it. For a whole project, a formatter in your editor will keep it consistent.
<div class="container">
<h1>Title</h1>
</div>
Frequently Asked Questions
Does this formatter support embedded CSS within HTML tags?
Yes. <style> and <script> blocks inside an HTML file are indented relative to the tag that contains them, so the nesting stays readable rather than resetting to the left margin.
Is my code sent to a server?
No — formatting runs entirely in your browser, so proprietary markup and styles never leave your device.
Does formatting change how my page renders?
Almost never — indentation and line breaks are cosmetic in HTML and CSS. The one edge case is whitespace-sensitive content like <pre> blocks or inline elements where spacing between tags matters; review those areas after formatting.
Why format code at all before sharing it?
Consistently indented code is dramatically easier to review, debug, and diff. Formatting minified or copy-pasted markup is usually the first step to understanding it.
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About This Tool
Minified or badly indented markup is hard to review and harder to hand to someone else. This formatter re-indents HTML and CSS with consistent nesting so the structure becomes visible — useful when you have inherited a file, pulled something out of a page inspector, or need to diff two versions meaningfully.
Formatting changes whitespace only; it does not alter your markup's meaning or rewrite selectors. Everything is processed in your browser and no code is transmitted or stored. For details on analytics and third-party ad requests, see our Privacy Policy.