Compress / Minify your Javascript
Minifying Javascript takes the beautified and well formed Javascript code that you have written and removes the spacing, indentation, new lines and comments. These elements are not required for Javascript to be used. It also makes the Javascript more heavy to read.
The purpose of minifcation of Javascript is to increase the speed of a website. Minimisation can make a Javascript up to 20% smaller, resulting in a faster load time.
Copy JS code here
FAQs
Q.: What is JavaScript Minification?
A.: JavaScript Minification is the process of stripping away unnecessary characters from your source code—including white spaces, comments, and long variable names—without altering the functionality of the script. This creates a highly optimized .min.js file that is much smaller in size, allowing for faster downloads and execution in the browser.
Q.: Does minifying JS improve Google PageSpeed scores?
A.: Yes, significantly. Minifying JS is a core requirement for passing Core Web Vitals audits. It reduces Total Blocking Time (TBT) and First Contentful Paint (FCP) by ensuring that the browser spends less time downloading and parsing large scripts before rendering the page.
Q.: Is it safe to minify my JavaScript code?
A.: Absolutely. Our online JS Minifier follows strict syntax rules to ensure that the logic of your code remains untouched. While the code becomes hard for humans to read, the JavaScript engine in the browser reads it perfectly. It is a standard practice used by developers for libraries like jQuery, React, and Vue.js.
Q.: What is the difference between Minification and Obfuscation?
A.: Minification focuses purely on reducing file size by removing fluff. Obfuscation is a more advanced process that intentionally makes the code difficult to reverse-engineer for security purposes. While minification provides some level of obfuscation by removing comments, its primary goal is web performance.
Q.: Should I minify JS files that are already compressed with Gzip?
A.: Yes. For maximum performance, you should always minify your JS first and then apply Gzip or Brotli compression at the server level. Minification removes the internal "noise" of the code, which actually makes the server-side compression algorithms even more efficient, resulting in the smallest possible transfer size.