JavaScript Minifier Online - Free JS Minify Tool

JavaScript Minifier Tool

Paste JavaScript code below to minify, remove comments, reduce file size and perform a basic syntax check directly in your browser.

🔒 Processed in your browser

JavaScript Input Paste JavaScript code

Minify Options

Remove comments Remove line comments and block comments from JavaScript. Remove console logs Remove console.log, console.warn and console.error lines. Keep semicolons Keep semicolons for safer minified JavaScript.

JavaScript status will appear here.

Minified Output No JavaScript minified yet

0 Functions

0 Variables

0 Comments

0 Console

Minify Summary

Status Waiting for input

Original size 0 bytes

Minified size 0 bytes

Saved 0%

Use Minify JS before publishing small scripts on production pages.

Enable remove console logs before deploying frontend scripts.

Your JavaScript is processed locally in your browser.

About This Tool

JavaScript Minifier is a free online developer tool that helps you reduce JavaScript file size by removing unnecessary spaces, line breaks and comments.

You can paste JavaScript code, frontend scripts, small functions or copied JS snippets and generate a compact minified version. The tool can also remove console statements, perform a basic bracket check and show useful statistics such as functions, variables, comments, console statements, original size, minified size and saved percentage.

This tool is useful for web developers, students, bloggers and anyone optimizing JavaScript code for websites.

How to Use JavaScript Minifier

1. Paste your JavaScript code into the input box.
2. Choose options such as remove comments, remove console logs and keep semicolons.
3. Click Minify JS to generate compact JavaScript.
4. Use Basic Format if you want a simple readable version.
5. Use Check JS to check for obvious bracket problems.
6. Copy the result or move it back to the input box.

Privacy Note: This JavaScript Minifier works directly in your browser using JavaScript. Your code does not need to be uploaded to our server.

Frequently Asked Questions

Is this JavaScript Minifier free?

Yes. This JavaScript Minifier is free to use and does not require signup.

Can this tool remove JavaScript comments?

Yes. Enable the remove comments option to remove line comments and block comments from your JavaScript code.

Can it remove console.log statements?

Yes. Enable the remove console logs option to remove common console statements such as console.log, console.warn and console.error lines.

Does this tool upload my JavaScript code to the server?

No. This tool processes your JavaScript directly in your browser using JavaScript.