JSDefender

JSDefender

PreEmptive
+

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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

JavaScript is a scripting language and programming language for the web that enables developers to build dynamic elements on the web. Over 97% of the websites in the world use client-side JavaScript. JavaScript is one of the most important scripting languages on the web. Strings in JavaScript are contained within a pair of either single quotation marks '' or double quotation marks "". Both quotes represent Strings but be sure to choose one and STICK WITH IT. If you start with a single quote, you need to end with a single quote. There are pros and cons to using both IE single quotes tend to make it easier to write HTML within Javascript as you don’t have to escape the line with a double quote. Let’s say you’re trying to use quotation marks inside a string. You’ll need to use opposite quotation marks inside and outside of JavaScript single or double quotes.

About

JavaScript Obfuscator protects browser and Node.js code against reverse engineering and tampering. Use the free online tool, the Windows desktop app, or the javascriptobfuscator-com npm package in builds and CI, with plugins for webpack, Vite, Rollup, esbuild, Next.js and Metro. Protection includes identifier renaming, string encoding and encryption, control-flow flattening, dead-code insertion, member protection, domain and date locking, self-defending output, debugger friction, and VM bytecode protection for marked functions. Teams that cannot send source to a third party can protect locally in the desktop app. Releases can be verified with Ed25519-signed attestations and opt-in reproducible builds. Migrating from javascript-obfuscator or JS-Confuser takes one command: the CLI converts your existing configuration. Free tier available; paid plans from $29/month.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Supported

Platforms Supported

Windows Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

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

Audience

Web developers and anyone looking for a mobile solution for running and developing web content

Audience

Developers and teams needing a tool to secure their JavaScript by easily transforming it into compressed, obfuscated code that deters tampering and unauthorized reuse

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free tier; Basic $29/month; Corporate $49/month; Enterprise $99/month
Free Version Supported
Free Trial Not Supported

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

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

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 Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

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

Company Information

JavaScript
Founded: 1995
United States
javascript.com

Company Information

Javascript Obfuscator
Founded: 2004
United States
javascriptobfuscator.com

Alternatives

Jscrambler

Jscrambler

4.4 out of 5 stars

Alternatives

Alternatives

AssemblyScript

AssemblyScript

The AssemblyScript Project
JavaScript Obfuscator Pro

JavaScript Obfuscator Pro

JavaScript Obfuscator
PrimeVeil

PrimeVeil

Covalence Systems
PrimeVeil

PrimeVeil

Covalence Systems
Dotfuscator

Dotfuscator

PreEmptive
JSDefender

JSDefender

PreEmptive

Categories

Categories

Categories

Integrations

Actian OpenROAD Not Supported
Allure Report Not Supported
BrainyAI Not Supported
Caret Not Supported
Codehooks Not Supported
Deno Not Supported
GPT-4o mini Not Supported
JetBrains Fleet Not Supported
Master PDF Editor Not Supported
Qwen2.5-Coder Not Supported
ScraperAPI Not Supported
SigNoz Not Supported
TinyMCE Not Supported
WebDataRocks Not Supported
WebLOAD Not Supported
WixPie Not Supported
Zed Not Supported
askbowtie Not Supported
codebeat Not Supported
omp Not Supported

Integrations

Actian OpenROAD Supported
Allure Report Supported
BrainyAI Supported
Caret Supported
Codehooks Supported
Deno Supported
GPT-4o mini Supported
JetBrains Fleet Supported
Master PDF Editor Supported
Qwen2.5-Coder Supported
ScraperAPI Supported
SigNoz Supported
TinyMCE Supported
WebDataRocks Supported
WebLOAD Supported
WixPie Supported
Zed Supported
askbowtie Supported
codebeat Supported
omp Supported

Integrations

Actian OpenROAD Not Supported
Allure Report Not Supported
BrainyAI Not Supported
Caret Not Supported
Codehooks Not Supported
Deno Not Supported
GPT-4o mini Not Supported
JetBrains Fleet Not Supported
Master PDF Editor Not Supported
Qwen2.5-Coder Not Supported
ScraperAPI Not Supported
SigNoz Not Supported
TinyMCE Not Supported
WebDataRocks Not Supported
WebLOAD Not Supported
WixPie Not Supported
Zed Not Supported
askbowtie Not Supported
codebeat Not Supported
omp Not Supported
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