RD
Ramesh DasAI · Backend · SaaS
Available for Hire
Let's Work Together//
Compress JavaScript files up to 70%, format code beautifully, protect your code with obfuscation, analyze complexity, and eliminate dead code — all in one powerful tool.
5 Tools in One
Input JavaScript
Output
Output will appear here
A JavaScript minifier is a tool that reduces the size of your JavaScript code by removing unnecessary characters like whitespace, comments, and line breaks, and by shortening variable and function names. This makes your JavaScript files smaller and faster to download, which improves website load times and user experience. Modern minifiers also beautify code for readability, obfuscate code for security, analyze code quality, and remove unused code to optimize bundles. Our tool combines all five features in one place, giving you complete control over your JavaScript optimization workflow.
Minified JavaScript files are 50-70% smaller, which means faster downloads and better performance for your users.
Smaller files mean less data transfer, which saves bandwidth and reduces hosting costs, especially for high-traffic websites.
Google considers page speed as a ranking factor. Faster-loading JavaScript improves Core Web Vitals and helps your site rank higher.
Obfuscation makes your JavaScript harder to reverse-engineer, protecting your intellectual property and business logic from competitors.
Always minify before deploying to production. It's a best practice for all modern web applications and improves overall site performance.
Analyze your JavaScript to find complexity issues, code smells, unused functions, and potential bugs before they reach production.
Tree-shaking removes unused code from your bundles, reducing file sizes and improving load times for modern JavaScript applications.
Beautify minified or messy JavaScript to make it readable again for debugging, learning, or code review purposes.
Our tool uses a multi-stage pure JavaScript engine that tokenizes, parses, and transforms your code without external dependencies.
The engine breaks down your JavaScript into tokens (keywords, identifiers, operators, strings, comments) while preserving string literals, regex patterns, and template literals.
Based on your selected mode, the engine applies transformations: removing whitespace and comments for minification, adding indentation for beautification, renaming identifiers for obfuscation, or analyzing structure for metrics.
The minifier shortens variable names, removes dead code, and optimizes syntax. The tree-shaker identifies unused functions and variables and eliminates them from the output.
The engine generates the final output with real-time stats showing original size, output size, compression ratio, and detailed metrics for each mode.
Compress JavaScript by removing whitespace, comments, and shortening variable names. Reduces file size by 50-70% for faster load times and better performance.
Format messy or minified JavaScript with proper indentation, spacing, and line breaks. Makes code readable for debugging and code review.
Protect your code by renaming variables, encoding strings to hex, and flattening control flow. Makes reverse-engineering much harder.
Get detailed metrics including function count, variable count, cyclomatic complexity, code smells, and quality warnings. Includes color-coded complexity meter.
Remove unused functions, variables, and dead code. Optimizes bundles by keeping only the code that's actually used in your application.
Download minified, beautified, or obfuscated JavaScript as .js files. Keep your original code safe while deploying optimized versions.
Copy your JavaScript code and paste it into the input panel on the left. You can paste code from files, browser consoles, or any text editor.
Select one of five modes: Minify (compress code), Beautify (format code), Obfuscate (protect code), Analyze (get metrics), or Tree-Shake (remove unused code).
For Minify mode, choose compression level. For Beautify, select indent size (2/4 spaces or tabs). For Obfuscate, choose obfuscation strength (low/medium/high).
The output appears instantly in the right panel. Click the Copy button to copy to clipboard, or click Download to save as a .js file. View compression stats below the output.
See how our comprehensive tool compares to basic minifiers and commercial JavaScript optimizers.
| Feature | This Tool | Basic Minifier | Commercial Tool |
|---|---|---|---|
| Minification | ✓ Advanced (70% compression) | ✓ Basic (50% compression) | ✓ Advanced |
| Beautification | ✓ Full formatting | ✗ Not available | ✓ Available |
| Obfuscation | ✓ 3 levels | ✗ Not available | ✓ Available ($$$) |
| Code Analysis | ✓ Full metrics | ✗ Not available | ✓ Available ($$$) |
| Tree-Shaking | ✓ Dead code removal | ✗ Not available | ✓ Available |
| Real-time Stats | ✓ Live compression stats | ✗ No stats | ✓ Available |
| File Download | ✓ All modes | ✓ Minified only | ✓ Available |
| Cost | ✓ Free forever | ✓ Free | ✗ $29-99/month |
Start minifying, beautifying, and analyzing your JavaScript code now. Free forever, no signup required.