JSDefender

JSDefender

PreEmptive
PrimeVeil

PrimeVeil

Covalence Systems
+
+

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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

PrimeVeil is a web-based JavaScript protection tool for developers who need to make client-side or distributed JavaScript harder to inspect and reuse. It transforms source code into custom bytecode executed by an embedded virtual machine, and can add per-build variation, control-flow restructuring, and runtime tamper checks. Users can protect code through the online dashboard, with options for browser, Node.js, React Native, service worker, and other targets. The service also provides compile-time macros for selected strings and functions, a command-line workflow, and a REST API on eligible plans. A free plan supports up to five builds per day and files up to 100 KB; paid plans add higher build allowances, advanced protection, API access, and team features depending on plan.

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 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

Audience

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

Audience

JavaScript, frontend, website, and application developers, including teams building anti-bot solutions.

Support

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

Support

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

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

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

Pricing

$1/obfuscation
Prepaid Build Credits cost $1 per obfuscation; buy 1–100 credits, with unused credits not expiring. Monthly plans start at $9 for 25 builds and include advanced protection. A free plan includes 5 builds per day.
Free Version Supported
Free Trial 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

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

Company Information

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

Company Information

Covalence Systems
Founded: 2025
United States
primeveil.com

Alternatives

Alternatives

JavaScript Obfuscator Pro

JavaScript Obfuscator Pro

JavaScript Obfuscator
PrimeVeil

PrimeVeil

Covalence Systems
Dotfuscator

Dotfuscator

PreEmptive

Categories

Categories

Integrations

Angular Supported
JavaScript Supported
Node.js Supported
React Supported
React Native Supported

Integrations

Angular Not Supported
JavaScript Not Supported
Node.js Not Supported
React Not Supported
React Native Not Supported
Claim JSDefender and update features and information
Claim JSDefender and update features and information
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