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
Developers lose hours staring at broken DOM node nesting. Utilize our local browser engine to reconstruct minified scripts without uploading proprietary UI logic to arbitrary servers.
Automated Indentation
Our DOM parser calculates exact mathematical node depth, actively repairing missing brackets or entirely broken indent cascades across thousands of lines.
Dual Support Engine
Seamlessly toggle between complex HTML nesting logic and cascading CSS style rule structures without needing two separate online utilities.
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.
Designed For Engineers
Visual Debugging
If your UI is exploding and you suspect a missing closing `div`, passing the raw unformatted string through our beautifier instantly reveals the broken vertical alignment.
Team Standardization
Before submitting a messy pull request to GitHub, execute a rapid format to align with global standardized bracket spacing and prevent unnecessary PR rejections.
<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.