While gzip is the most popular compression method, there are lots of others out there.įor example, the Brotli algorithm has proven to be equally good, if not better, in some aspects. Here’s a great example of this process in action:Īs you can see, the text in brackets is repetitive, so gzip replaces it with a pointer. The benefit is that pointers use less space than text. Gzipping works by finding the repetitive strings and replacing them with pointers to the first instance of the string. In fact, people often use the term “gzipping” as a substitute for compression. The most popular compression tool is gzip. While minification removes unnecessary data from a file, compression rewrites the files’ binary code and encodes the information using fewer bits than the original. However, there’s a fundamental difference between the two. Both techniques essentially provide the same benefit, i.e., making files smaller. People often confuse minification and compression, which is understandable. The Difference Between Minification and Compression (Gzipping) Lots of CDN providers also automatically minify files on their servers. Most JavaScript libraries provide minified versions of their files by default. That’s why minification has become an industry standard over the last few years. But when you apply the process to large code files, the savings are significant. In this example, the actual size difference between the regular and minified version is tiny. When we run it through a CSS minifier, the same code looks like this: (Of course, they also help developers write and review code, but browsers don’t care about that.)įor example, here’s how an unminified CSS files looks: In that sense, all they do is bloat code files. Minification is the process of removing unnecessary elements from your website’s code without affecting its performance.Ī few examples of unnecessary elements are:īrowsers don’t need these to render the page. What is HTML, CSS and JavaScript Minification? If you aren’t interested in the “why” behind these techniques, skip ahead to the "Tools for HTML, CSS and JavaScript Minification section".Īnd for the easiest way to optimize your website’s code, go to "Automated Minification and Compression with NitroPack" įor now, let’s dive a bit deeper into minification. Good thing is, there are lots of tools that can help you with that. And while different, the smart move is getting them in one go. Minification - removing unnecessary parts like whitespace and comments from the code Ĭompression - applying algorithms to rewrite the files’ binary code, using fewer bits than the original.īoth are low effort, high reward optimizations. You can make code files lighter by applying two techniques: For Auto Minify, select the file types to minify.Reducing HTML, CSS and JavaScript file size is a crucial part speeding up your website.If you need to enable or disable minification for CSS & JS you will now need to purge your Cloudflare cache to see the effect of any minification change. This allows us to deliver a more complete minification result. Once Cloudflare returns a cache HIT for the file it will be returned to browsers in minified form. CSS and JS minification operates on cached CSS and JS files only. HTML files are minified dynamically by removing comments and unnecessary empty lines only. Auto Minify will remove all unnecessary characters from HTML, JavaScript, and CSS files. Cloudflare users interested in minifying HTML, CSS and JavaScript can activate Auto Minify in their Cloudflare settings.
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