Paste your HTML below and click Beautify HTML to instantly format and clean it up. Works entirely in your browser — nothing is uploaded to any server.
Our HTML Beautifier uses the industry-standard js-beautify library to format your code. Here is what it takes care of:
Every nested HTML tag is indented correctly so you can clearly see the structure of your document at a glance.
CSS inside <style> blocks is also formatted separately with proper spacing, making it easy to read and edit.
Inline <script> blocks are formatted too. Minified JavaScript is expanded into readable, properly indented code.
Your code never leaves your browser. The beautifier runs entirely in JavaScript on your device — nothing is sent to any server.
Choose your preferred indent size (2 or 4 spaces), line wrap length, and toggle CSS and JS formatting on or off.
Copy the formatted code to your clipboard with one click, or download it as an .html file ready to use.
Here are common situations where an HTML Beautifier is very useful:
These two tools do the opposite things. Here is a quick comparison:
| Feature | HTML Beautifier | HTML Minifier |
|---|---|---|
| Purpose | Make code human-readable | Reduce file size for production |
| Adds whitespace & indentation | ✔ Yes | ✘ No — removes it |
| Good for debugging | ✔ Yes | ✘ No |
| Good for page speed | ✘ No — larger files | ✔ Yes — smaller files |
| Use during development | ✔ Yes | ✘ No |
| Use before going live | ✘ No | ✔ Yes |