JavaScript Tools

JS Obfuscator

JS Obfuscator — obfuscate JavaScript so the source is not human-readable. It works entirely in your browser, with nothing uploaded to any server.

Client-sideRuns entirely in your browser — your data never leaves your device.

JS Obfuscator is a free JavaScript Tools utility that runs entirely in your browser — nothing you enter is uploaded.

JavaScript input
Obfuscated output

How to use JS Obfuscator

  1. Paste the text you need to process into the input box.
  2. JS Obfuscator updates the output automatically as you type.
  3. When it looks right, Copy to save it.

About this tool

JS Obfuscator runs entirely in your browser. JS Obfuscator handles your input locally and returns the result instantly, with no sign-up.

Because it runs on your device, it is fast and private and works offline once loaded. It behaves the same on desktop and mobile, with nothing stored remotely.

Frequently asked questions

What is JS Obfuscator for?

JS Obfuscator lets you process your input right in the browser, with the result shown instantly and nothing uploaded.

Does JS Obfuscator cost anything?

No — JS Obfuscator is completely free, with no sign-up and no hidden limits.

Is my input private in JS Obfuscator?

Yes — your input never leaves your device; JS Obfuscator does all the work in your browser.

Does JS Obfuscator work on mobile?

Yes — JS Obfuscator is just a web page and runs on any modern browser, including phones and tablets.

Related javascript tools