JavaScript Minifier – Minify JS Free Online

Name: JavaScript Minifier – Minify JS Free Online
Rating: 4.8 (263 reviews)
Author: DevriQ

★ 4.8

(263 votes)

Aggressively minify Vanilla JavaScript algorithms for active deployment. Meticulously preserve complex regex and literal strings locally and securely.

Input JavaScript

667 B

Minified Output

667 B

const devriq={init:function(){this.tools=[];this.config={theme:'dark',accent:'#06D38C',version:'2.0.0'}},addTool:function(name,slug,category){if(!name||!slug)throw new Error('name and slug required');this.tools.push({name,slug,category,createdAt:new Date().toISOString()});return this},getByCategory:function(cat){return this.tools.filter(t=>t.category===cat)},render:function(){return this.tools.map(t=>`<div class="tool">${t.name}</div>`).join('')}};devriq.init();devriq.addTool('Image Compressor','image-compressor','image').addTool('Regex Tester','regex-tester','dev').addTool('CSS Minifier','css-minifier','dev');console.log('Tools loaded:',devriq.tools.length);

667 B

Original

667 B

Output

-0.0%

Savings

Statements

How to Use the JavaScript Minifier

Paste JavaScript

Paste any JavaScript code in the input box. Click 'Sample' to load an example.

Select Mode

Click 'Minify' to compress JS for production, removing comments and whitespace. Click 'Beautify' to format minified code.

Copy & Deploy

Copy the minified output and use it directly in your HTML <script> tags or build pipeline.

Frequently Asked Questions

Is this the same as Webpack or Terser?

This is a lightweight client-side minifier. For production builds, use Webpack/Vite with Terser for advanced tree shaking and variable renaming.

Will minification break my JavaScript?

It safely removes comments, trailing semicolons, and whitespace. String literals and regex patterns are preserved untouched.

Does it support ES6+ syntax?

Yes, it handles arrow functions, template literals, destructuring, and modern JS syntax without issues.

How much size reduction can I expect?

Typically 20–50% reduction depending on code style. Verbose code with many comments will see higher savings.

Is it free and private?

100% free, client-side, and private. Your code is never sent to any server.

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Embed / Link

https://tools.devriq.in/js-minifier/