JSDefender

JSDefender

PreEmptive
Java

Java

Oracle

About

JS-Confuser is a powerful, open source JavaScript obfuscation tool that transforms your source code into a highly unreadable form, deterring reverse engineering, tampering, and unauthorized reuse while preserving full functionality. It offers multiple obfuscation techniques, including variable renaming, control flow flattening, string concealing, and function obfuscation, along with locks such as domain-based or date-based execution constraints and integrity checks to detect runtime modifications. Designed for flexibility, it provides obfuscation presets, ranging from 10 to 21+ transformation layers, and also allows fully customizable configurations to suit performance and protection needs. The tool operates entirely in the browser for fast, private obfuscation workflows, and includes advanced tooling features such as a playground for interactive experimentation, customizable options via JavaScript, integrated code prettification, and debugging support.

About

Cutting-edge JavaScript obfuscation techniques with control-flow flattening, tamper detection and other in-app protection transforms. We would not send our own unprotected code to a remote service controlled by third parties and we would not expect you to either. JSDefender supports major JavaScript frameworks, runtimes, and bundlers including Angular, Node, React, React Native, Webpack and others. 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.

About

The Java™ Programming Language is a general-purpose, concurrent, strongly typed, class-based object-oriented language. It is normally compiled to the bytecode instruction set and binary format defined in the Java Virtual Machine Specification. In the Java programming language, all source code is first written in plain text files ending with the .java extension. Those source files are then compiled into .class files by the javac compiler. A .class file does not contain code that is native to your processor; it instead contains bytecodes — the machine language of the Java Virtual Machine1 (Java VM). The java launcher tool then runs your application with an instance of the Java Virtual Machine.

About

PureScript is a strongly typed, purely functional programming language that compiles JavaScript. It enables developers to build robust web applications, web servers, and mobile apps using functional programming techniques. PureScript offers features such as algebraic data types, pattern matching, row polymorphism, extensible records, higher-kinded types, type classes with functional dependencies, and higher-rank polymorphism. The language emphasizes strong static typing and pure functions, ensuring code reliability and maintainability. Developers can compile PureScript code into readable JavaScript, facilitating seamless integration with existing JavaScript codebases. The ecosystem includes an extensive collection of libraries, excellent tooling, and editor support with instant rebuilds. An active community provides numerous learning resources, including the PureScript book, which offers practical projects for beginners.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers and teams wanting a tool to secure their JavaScript by transforming it into heavily obfuscated, self-defending code

Audience

IT teams in need of a professional-grade Application Protection solution

Audience

Developers looking for a Programming Language solution

Audience

Developers interested in a solution to build reliable and maintainable applications

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

JS-Confuser
United States
js-confuser.com

Company Information

PreEmptive
Founded: 1996
United States
www.preemptive.com/products/jsdefender/

Company Information

Oracle
docs.oracle.com/javase/8/docs/technotes/guides/language/index.html

Company Information

PureScript
Founded: 2017
United States
www.purescript.org

Alternatives

Alternatives

Alternatives

Alternatives

Apache Groovy

Apache Groovy

The Apache Software Foundation
Dotfuscator

Dotfuscator

PreEmptive
BlueClosure

BlueClosure

Minded Security
BlueClosure

BlueClosure

Minded Security
DashO

DashO

PreEmptive

Categories

Categories

Categories

Categories

Integrations

Better Stack
Black Duck
Buffer Editor
CodePeer
DbVisualizer
EditPlus
GPT-5.1-Codex
GPT-5.1-Codex-Max
Grok 3 mini
Material Files
Numecent Cloudpaging
Saagie
Semantic Kernel
TNET FrontOffice
Vald
WebKing
Windsurf Editor
american fuzzy lop
jBrowserDriver
phase 5

Integrations

Better Stack
Black Duck
Buffer Editor
CodePeer
DbVisualizer
EditPlus
GPT-5.1-Codex
GPT-5.1-Codex-Max
Grok 3 mini
Material Files
Numecent Cloudpaging
Saagie
Semantic Kernel
TNET FrontOffice
Vald
WebKing
Windsurf Editor
american fuzzy lop
jBrowserDriver
phase 5

Integrations

Better Stack
Black Duck
Buffer Editor
CodePeer
DbVisualizer
EditPlus
GPT-5.1-Codex
GPT-5.1-Codex-Max
Grok 3 mini
Material Files
Numecent Cloudpaging
Saagie
Semantic Kernel
TNET FrontOffice
Vald
WebKing
Windsurf Editor
american fuzzy lop
jBrowserDriver
phase 5

Integrations

Better Stack
Black Duck
Buffer Editor
CodePeer
DbVisualizer
EditPlus
GPT-5.1-Codex
GPT-5.1-Codex-Max
Grok 3 mini
Material Files
Numecent Cloudpaging
Saagie
Semantic Kernel
TNET FrontOffice
Vald
WebKing
Windsurf Editor
american fuzzy lop
jBrowserDriver
phase 5
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