Free Unminify Tool for JS, CSS, HTML

Unminify and beautify compressed JS, CSS, and HTML code effortlessly, making it readable again.

Why use an Unminify tool?

If you've minified the code for your website or web application, it's always a good idea to keep the original, unminified version for future reference. If you lose the original or need to analyze code from another source, an Unminify tool can make the minified code readable again. That's where our completely free unminification tool comes in handy!

What is minification?

When developers write code, they typically format it to be human-readable, with comments, spaces, and multiple lines to improve clarity. While this makes it easier to understand and manage, it can negatively impact web page load times by increasing file sizes.

Minification is the process of removing unnecessary characters, such as whitespace, comments, and formatting, leaving only the essential code needed for execution. This significantly reduces file sizes and improves load times.

What does this Unminify tool do?

Our Unminify tool expands compressed code to make it easier to read and understand. It works with JavaScript (JS), CSS, HTML, XML, and JSON and can process both files and pasted code snippets. The entire process happens within your browser, ensuring that your code remains private and secure.

However, please note that this tool cannot completely restore a minified file to its original state. It will not recover comments, notes, or formatting removed from the original file that were discarded during minification.

How to use this unminifying tool

Follow these simple steps to unminify your code:

  1. Copy and paste a code snippet, use the BROWSE button to upload a code file, or drag and drop a file into the input field.
  2. To upload code from a web page, use the LOAD URL button. Please note that the web page must allow cross-origin requests for this feature to work.
  3. Once loaded, click the UNMINIFY button to instantly expand the code.
  4. Adjust TAB SIZE to your preference and click UNMINIFY again to see the changes.
  5. Use the DOWNLOAD button to save the unminified code as a file, or click COPY to copy it to the clipboard.
  6. To start from scratch with new code, use the DELETE button.