jQuery Minifier

jQuery Minifier & Compressor Online

Use this online jQuery minifier to shrink and optimize jQuery code to decrease the size for production. Type, paste or upload your scripts, choose ECMAScript and jQuery safe options, and run the compressor. The tool reduces bundle size while keeping jQuery behavior intact.

Core Features

• Minify to remove comments, whitespace, and redundant tokens for jQuery code
• Compress to drop dead code and unused functions from plugins and app scripts
• Options to preserve class and function names for runtime checks and stack traces
• Parse settings that accept shebangs bare returns and HTML5 comments
• Fine grain compress controls like collapse vars evaluate inline and hoist props
• Control removal of console and debugger statements with drop console and debugger
• Runs in the browser so you can minify jQuery without uploading files to a server

How to use this jQuery Minifier

1. Write, paste or upload your jQuery script into the editor
2. Choose customization options as per you requirement
3. Click Minify jQuery button
4. Preview the result, and download it

Why use a jQuery minifier or compressor

Smaller jQuery bundles load faster and improve page loading time. A jQuery minifier removes non essential characters and shortens identifiers. A compressor goes further by inlining constants removing unreachable code and merging statements.

Use the tool to reduce bandwidth and speed up pages while retaining readable source files in version control for debugging.

When processing jQuery libraries avoid property mangling unless you have a whitelist and a full test suite.

Key differences: original jQuery code vs minified output

• Original code is readable with comments and full identifiers
• Minified output removes comments whitespace and shortens names to save bytes
• Compressed output can inline constants remove unused code and reorganize statements for size

Example 1: Simple jQuery Plugin

(function($){
    $.fn.flashText = function(color, duration) {
        return this.each(function() {
            const el = $(this);
            const original = el.css('color');
            el.css('color', color);
            setTimeout(() => el.css('color', original), duration || 500);
        });
    };
})(jQuery);

!function(c){c.fn.flashText=function(o,s){return this.each((function(){const t=c(this),n=t.css("color");t.css("color",o),setTimeout((()=>t.css("color",n)),s||500)}))}}(jQuery);

Example 2: Advanced jQuery Script

$(document).ready(function() {
    function e(e, t) {
        return e.filter(function() {
            return this.value.match(t)
        })
    }
    $.fn.extend({
        highlight: function() {
            return this.css("background-color", "yellow")
        },
        unhighlight: function() {
            return this.css("background-color", "")
        }
    }), $(".btn").click(function() {
        $(".box").toggleClass("active")
    }), $(".close").click(function() {
        $(".box").removeClass("active")
    }), $(".nav-toggle").click(function() {
        $(".nav").slideToggle()
    }), $("input").focus(function() {
        $(this).highlight()
    }).blur(function() {
        $(this).unhighlight()
    }), $("form").submit(function(e) {
        e.preventDefault();
        var t = $("input[name='email']").val();
        if (!t.match(/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,}$/)) {
            alert("Invalid email");
            return !1
        }
        return !0
    }), $(".accordion > .title").click(function() {
        $(this).next().slideToggle()
    })
});

$(document).ready((function(){$.fn.extend({highlight:function(){return this.css("background-color","yellow")},unhighlight:function(){return this.css("background-color","")}}),$(".btn").click((function(){$(".box").toggleClass("active")})),$(".close").click((function(){$(".box").removeClass("active")})),$(".nav-toggle").click((function(){$(".nav").slideToggle()})),$("input").focus((function(){$(this).highlight()})).blur((function(){$(this).unhighlight()})),$("form").submit((function(n){return n.preventDefault(),!!$("input[name='email']").val().match(/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,}$/)||(alert("Invalid email"),!1)})),$(".accordion > .title").click((function(){$(this).next().slideToggle()}))}));

Customization Options

Below are are all the jQuery optimization options available while cmopressing your code.

Best Practices For jQuery Minification

• Keep original code in version control
• Minify jQuery for production only, keep readable builds for development
• Generate source maps for easier debugging
• Test minified output across browsers and devices
• Review third-party libraries before heavy optimization
• Automate minification in CI with environment flags
• Use multiple passes only when necessary

Conclusion

This jQuery minifier and compressor helps you reduce bundle size and improve load time and runtime performance. Choose ECMAScript settings and jQuery safe compress options to match your environment.

Always test the minified output with your jQuery plugins before deploying to production.