JS Obfuscator
Protect your JavaScript code by making it difficult to read and reverse-engineer. All processing happens in your browser â your code never leaves your device.
Obfuscation is the process of transforming readable JavaScript code into a form that is difficult for humans to understand, while keeping it functional. It renames variables, encodes strings, and restructures logic to protect your code from being easily copied or reverse-engineered.
No. Unlike server-side code, JavaScript runs in the user's browser, which means the browser must be able to read and execute it. Any "encryption" can be reversed because the decryption key must also be present in the browser. Obfuscation is the industry-standard approach to protect client-side code.
No. All obfuscation happens entirely in your browser. Your JavaScript code never leaves your device and is never stored, logged, or transmitted anywhere.
Yes. Obfuscation does not change the behavior of your code â it only makes it harder to read. However, some advanced obfuscation options (like dead code insertion) may slightly increase file size and reduce performance, so test your code after obfuscation.
Determined attackers can still reverse-engineer obfuscated code using tools like deobfuscators, but it requires significant time and effort. Obfuscation is a deterrent, not absolute protection. For truly sensitive logic, keep it on the server side.
Yes, 100% free with no signup, no limits, and no hidden fees. You can obfuscate as many files as you want.
Self-defending mode adds code that attempts to detect and prevent beautification or debugging attempts. It is not foolproof but adds another layer of protection against casual inspection.