Professional-grade Application Protection

Professional obfuscation and in-app protection for over 20 years.

Powerful Protection

Cutting-edge JavaScript obfuscation techniques with control-flow flattening, tamper detection and other in-app protection transforms.

Keep Your Code In-house

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 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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Receive a customized quote based on your needs.

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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:

Demo of JSDefender – JavaScript Obfuscator

Watch this video for a quick overview of obfuscation and how to quickly get started using JSDefender.

Case Study: GlobalMed

The World’s #1 Telemedicine Company uses JSDefender – PreEmptive Protection for JavaScript.

"JSDefender is able to be quickly integrated into existing build processes without any hassle. The documentation is clear, and the product has a variety of configuration options."

Spencer Brown, Product Manager at /n Software

JSDefender
2020-11-24T15:57:26+00:00

Spencer Brown, Product Manager at /n Software

"JSDefender is able to be quickly integrated into existing build processes without any hassle. The documentation is clear, and the product has a variety of configuration options."

"JSDefender totally met what we needed. We needed obfuscation to protect our IP."

James Godziela, Senior Software Engineer at GlobalMed

JSDefender
2020-11-24T15:58:23+00:00

James Godziela, Senior Software Engineer at GlobalMed

"JSDefender totally met what we needed. We needed obfuscation to protect our IP."
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