Professional-grade Application Protection



Powerful Protection

Cutting-edge JavaScript obfuscation techniques with control-flow flattening, domain locking and other in-app protection transforms. Protect your application without performance impact.

Keep Your Code In-house

Unlike some other vendors, we don't want you to send your unprotected code to us. We would not send our own unprotected code to a remote service controlled by third parties and we would not expect you to either.

World-Class Support

Our support team is here for you. Based in the US and Europe, our highly-technical support engineers have seen it all. Our customers love our support, and consistently give it the highest ratings.

Supports Major Frameworks

JSDefender supports major JavaScript frameworks, runtimes, and bundlers including Angular, Node, React, React Native, Webpack and others.



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What is In-App Protection & Obfuscation and how does it apply to JavaScript?

Unlike languages like .NET and Java that are compiled to intermediate, stack-based assembly instructions before being distributed in binary form, JavaScript apps are typically distributed in source form. This means that your code is directly visible to anyone with access to the execution environment (like a browser). So, potential attackers can very easily step through the running code using a debugger built into their browser, or use other tools to statically analyze the code for vulnerabilities.


Does this matter?

  • Does the JavaScript contain code you don't want competitors to copy or clone?
  • Is there a reason a hacker might want to circumvent some of your checks or actively look for vulnerabilities?
  • Is there risk of harm or reputation damage if the code is modified in a nefarious way? (e.g. to serve malware, or to enable phishing, etc.)

If the answer is “yes” to any of these questions, then consider obfuscating and protecting your JavaScript code.

Why should I obfuscate and protect my JavaScript Apps?

  • To make it more difficult for a hacker to reverse engineer your code
  • To hide business logic and unique algorithms
  • To make it more difficult for a hacker to debug your application and look for vulnerabilities
  • To make it more difficult for an attacker to exploit those vulnerabilities, once found
  • To reduce the code size (minification aspect of obfuscation)
  • To make it more difficult for an attacker to modify or steal your code

Learn more about:


Mobile

More and more mobile apps use JavaScript—JSDefender integrates with React Native to help protect those assets.

JSDefender's Features

JSDefender secures your JavaScript apps against tampering, reverse engineering, misuse and data theft using sophisticated obfuscation and active protection techniques. Learn more.

We Don't See Your Code

Unlike other vendors, we don’t need you to send your code to us. Your source code stays under your control.

Regulations & Standards

Apps are the gateways to data, and in-app protection is a key component of regulatory compliance. Learn more about GDPR, PCI, DTSA, and OWASP.


Try or Buy JSDefender Now

Ready to get started? Click below to get a quote or to download a free trial.

Try Now      Get a Quote