Reduce your JavaScript and TypeScript file size and improve website performance with our free online minifier. Remove unnecessary whitespace, comments, and formatting to optimize your scripts for production environments.
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Best Practice
Keep your original source files for development and only use minified versions for your production deployment.
Did You Know?
Minification can reduce the size of typical JavaScript files by 30% to 50%, significantly improving mobile performance.
JavaScript is the primary programming language for web development, powering interactive features across the internet. TypeScript is a superset of JavaScript that adds static typing to help developers catch errors early. While these languages are written to be human-readable, browsers only require the logical instructions. Minification bridges this gap by preparing your code for the most efficient delivery possible in production environments.
Tip
Combine minification with server-side Gzip or Brotli compression for the best possible file delivery speeds.
Q: Does minifying my code change its functionality? A: No, minification only removes non-functional elements like whitespace and comments; your code logic remains exactly the same.
Q: Should I minify TypeScript before or after compiling to JS? A: Typically, you compile TypeScript to JavaScript first and then minify the resulting JS, though our tool can handle both syntax styles.
Q: Is it safe to use this tool for production code? A: Yes, our minifier uses industry-standard logic to ensure your code remains functional while being as small as possible.
Q: Can I get my original code back from a minified file? A: You can use a formatter to make it readable again, but original comments and variable names (if mangled) cannot be recovered.
Best Practice
Use source maps when minifying so you can map production errors back to your original, readable source code.