Obfuscator.io is a powerful JavaScript obfuscator that protects your source code from theft and reverse engineering. Secure your JavaScript with advanced obfuscation and VM protection.

Support HTML files with inline JS Multi-file batch obfuscation (up to 10 files) API access API access via javascript-obfuscator Unlimited basic obfuscation Obfuscation history (browser …

You can use VM obfuscation in your build pipeline via the javascript-obfuscator npm package. The obfuscatePro() method connects to the obfuscator.io cloud service for VM-based bytecode …

Obfuscator.io transforms your readable source code into a protected version that's difficult to understand and reverse-engineer. It's perfect for protecting proprietary algorithms, licensing …

Dec 18, 2025 · Operator (referred to as either "the Operator", "We", "Us" or "Our" in this Cookies Policy) refers to the JavaScript Obfuscator Pro team, operating JavaScript Obfuscator, …

// This code WILL be obfuscated var secret = 'protected'; // javascript-obfuscator:disable var config = { apiUrl: 'https://api.example.com', // Stays readable version: '1.0.0' }; // javascript …

Use comment mode for surgical protection. Mark only sensitive functions with /* javascript-obfuscator:vm */ instead of protecting everything. Test thoroughly after obfuscation. Always …

Obfuscator.io is a powerful JavaScript obfuscator that protects your source code from theft and reverse engineering.

Please read these Terms of Service ("Terms", "Terms of Service") carefully before using the JavaScript Obfuscator, JavaScript Obfuscator Pro, and obfuscator.io services (collectively, the …

JavaScript Obfuscator is a free online tool that obfuscates your source code, preventing it from being stolen and used without permission.