PTK (PenTest Kit) is a browser-based toolkit designed for cybersecurity professionals to detect client-side vulnerabilities. By analyzing code execution in real time, PTK helps identify security weaknesses in web applications, such as cross-site scripting (XSS) and insecure JavaScript practices. Its intuitive interface allows penetration testers to simulate attacks and monitor how client-side code behaves under various scenarios. PTK streamlines the vulnerability assessment process, enabling faster detection and remediation of issues before they can be exploited by malicious actors. It is widely used in security audits and web application testing to ensure robust client-side defenses.