Reduce your file size by removing whitespace and comments from HTML, CSS, or JavaScript.
Minification is the process of stripping away unnecessary characters from source code—such as whitespace, line breaks, and comments—without changing how the code functions. For browsers, these characters are irrelevant, but they add bulk to your files.
Using a minifier is a critical step in Frontend Optimization. It ensures that your users download the smallest possible version of your website, leading to faster First Contentful Paint (FCP) times.
Is minified code safe to use?
Yes. Minification is a standard industry practice. It simply cleans the code for machine consumption. However, you should always keep a "source" version for yourself so you can edit it later.
Will this break my JavaScript?
This tool uses safe regex patterns to remove comments and extra spaces. It is designed to work with valid HTML, CSS, and JS. If your code is already broken or missing semicolons, minification might highlight those errors.
Does Toolzen store my code?
No. Security and privacy are our core principles. All processing happens locally in your browser. Your code never touches our servers.