Comprehensive Tool for JavaScript Monitoring

Eval Villain is a powerful tool designed for web development that enhances JavaScript security by monitoring input through various sinks. This Firefox extension hooks into JavaScript functions to detect potential vulnerabilities like DOM XSS by analyzing inputs against user-defined strings or regex patterns. The tool offers a default configuration that targets common XSS sinks, but users can customize it to hook any function as needed. With the ability to enable or disable features at will, Eval Villain facilitates a tailored approach to web security assessments.

In addition to its primary function, Eval Villain provides advanced capabilities such as recursive decoding of sources, allowing it to uncover hidden elements and obfuscated code. It can track the behavior of ad networks and detect encoded HTML in iframes, giving developers insights into how web pages operate. With its extensive configuration options and a user-friendly interface, Eval Villain is an invaluable resource for developers looking to enhance their web applications' security and performance.

 0/1

App specs

  • License

    Free

  • Version

    2.11

  • Latest update

  • Platform

    firefox

  • Size

    55.19 KB

  • Developer

Program available in other languages



User reviews about Eval Villain

Have you tried Eval Villain? Be the first to leave your opinion!

Add review

Top extensions for Mozilla Firefox

Top downloads Web development for Mozilla Firefox

Top downloads Web development for Mozilla Firefox

Top downloads Web development for Mozilla Firefox

Related topics about Eval Villain

You may also like

Explore Apps

Latest articles

Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
Softonic

Is Eval Villain safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

    VirusTotal logo

Scan Info

Last scan
Wednesday, January 7, 2026
Scan provider
VirusTotal · Full report

File Integrity

File
2.11.xpi
SHA256
3543740e09cb5f26d45593cfe266d6516cd0107345d085939247aa1aafd02ab9
SHA1
cb240aa09c9dd5952de6c5736bca8b5ffdda81d9

Softonic security commitment

Eval Villain has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center