Free Online Code Minifier (Terser)

Reduce the size of your JavaScript code using Terser.

Free Online Code Minifier: Reduce JavaScript File Size

Optimize your website's performance by reducing the size of your **JavaScript code** with our **free online code minifier**. Powered by **Terser**, a widely used JavaScript parser and minifier, this tool removes unnecessary characters like whitespace, comments, and long variable names without changing the code's functionality. Simply paste your JavaScript code into the input area and get the minified version instantly. Smaller file sizes lead to faster loading times and improved user experience. Also check out our Code Formatter for cleaning up code style.

How to Use the Free Online Code Minifier

How to Use This Tool

Enter JavaScript Code

  1. 1

    Paste or type the JavaScript code you want to minify into the 'Input Code' area.

  2. 2

    Ensure the code is syntactically valid JavaScript.

Minify & Copy

  1. 1

    Click the 'Minify Code' button.

  2. 2

    The minified (uglified) code will appear in the 'Minified Code' area below.

  3. 3

    If minification fails due to syntax errors, an error message will be shown.

  4. 4

    Use the 'Copy Minified Code' button to copy the result.

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