Frequently Asked Questions

What is JavaScript Obfuscator?

JavaScript Obfuscator converts JavaScript source code into an obfuscated and unreadable form, helping prevent analysis and theft while fully retaining the behavior of the original code. It is a safe JavaScript minifier and compressor for production use.

Why should I use JavaScript Obfuscator?

Is JavaScript Obfuscator suitable for my project?

Yes. JavaScript Obfuscator is flexible enough for projects of different sizes, from small website scripts to larger application codebases.

What forms of order do you accept?

We use Stripe and PayPal to accept online orders in a secure and reliable way. All major credit cards are accepted, and you do not need a PayPal account to purchase with a credit card.

Do I have to sign a long-term contract?

No. You are charged monthly and can cancel or change plans at any time. If you cancel, you will only be charged for the current month and will not be billed again after that.

Upgrade License Type

If you need to move to a different license tier later, your original purchase can be applied toward the upgraded license.

Can ChatGPT, Claude, or Copilot reverse-engineer code protected by JavaScript Obfuscator?

Maximum-mode protection is built specifically against LLM-assisted reverse engineering. Every build emits a different decoder shape, key derivation routine, identifier prefix, and constant-pool encoding. LLMs work by pattern-matching against known transform signatures — Maximum mode regenerates the signature on every release, so an AI deobfuscator that "solves" one build can't apply the same approach to the next. The protected output also exposes no readable strings, identifiers, or control-flow shape for an LLM context window to anchor on. Read the long-form technical answer or the Maximum-mode mechanism breakdown.

Is JavaScript Obfuscator compatible with ES6 or ES8?

Yes. JavaScript Obfuscator is compatible with ES6 and ES8, and new engine support continues to be added over time.

Is it possible to recover the original file from an obfuscated version?

No. Once the symbols and comments are transformed, the original source cannot be recovered from the obfuscated output — not by hand, not by automated deobfuscators, not by LLM-based tools. Keep your original source files in a safe place.

Can JavaScript Obfuscator protect JavaScript that is embedded in HTML?

Yes. JavaScript Obfuscator Desktop can also protect JavaScript embedded in HTML, PHP, ASP, ASPX, JSP, and similar files.

Does JavaScript Obfuscator optimize for speed?

In many cases, smaller code is faster code because download time is a major performance factor. Reducing redundancies can also help runtime efficiency.

Are there any restrictions on the size of the files that can be obfuscated?

JavaScript Obfuscator Desktop does not have a maximum file size limit for your project files.

Can I keep an exclude list of variables and functions that should not be obfuscated?

Yes. JavaScript Obfuscator Desktop lets you create a list of names with specific settings so selected variables and functions can remain unchanged.

My project has several files that call functions in each other. Will JavaScript Obfuscator protect it correctly?

Yes. The protected version of the same symbol stays consistent across every file in your project.

Where does JavaScript Obfuscator fit in a modern build or release process?

The strongest fit is after your application has already generated the JavaScript files you plan to ship. Use the online obfuscator for quick validation, then move into the desktop project and generated command-line workflow when you want larger releases, repeatable automation, or embedded JavaScript support.

Can I automate obfuscation in CI or release scripts?

Yes. The desktop app can generate a command line from the project settings you already configured, which is the recommended path for repeatable build and release automation.

Do you keep my JavaScript source code?

No. Source code obfuscation is processed in server memory, and you do not need to upload JavaScript files to the server. For more details, please review the Terms of Service and Privacy Policy.

Who builds JavaScript Obfuscator?

JavaScript Obfuscator is developed by Richscripts Inc in Ontario, Canada. You can review the company background, contact details, and published policies on the About, Privacy, and Terms pages.

How long has the product been around?

The product history on this site goes back to 2004. That history matters because many teams evaluating obfuscation tools care about whether the workflow has been used in production over time, not just whether a feature list looks current.

Where should I start if my team is doing a security or procurement review?

Start with the Security and Trust page, then review Security and Processing, Compatibility and Release Validation, Pricing, and the historical Clients page. That gives reviewers a clear view of source handling, release validation, team workflow fit, and long-running product context.

Can we keep sensitive projects local?

Yes. Use the desktop workflow when your source must stay on the workstation or when mixed files such as HTML, ASPX, JSP, or PHP need local review before release.

Do the customer logos represent current endorsements?

No. The clients page is presented as historical buying context. It is meant to show the kinds of organizations that have used the product over time, not to claim ongoing endorsement or a current partner program.