Minify JavaScript, CSS and HTML to make files smaller and pages faster, and see how much you save.
Making a site faster? Shrink your pictures with Compress image, and check your share previews with the Open Graph checker.
It removes what browsers don't need, like spaces, line breaks and comments, and (for JavaScript) shortens local variable names. The code works the same but downloads faster.
JavaScript is minified with Terser, the minifier used by most build tools. CSS and HTML minifying only removes comments and extra spaces, and leaves text in strings, <pre> and <textarea> exactly as it is. Keep your original files: minified code is hard to edit.
Modern JavaScript (ES2023), including modules, classes, async functions and optional chaining. It doesn't transform TypeScript or JSX; compile those first.
No. Everything is minified in your browser.
