retire.js is a security tool designed to identify outdated and vulnerable JavaScript libraries within websites and applications. By comparing JavaScript files against a continuously updated database of known vulnerabilities, it aids developers and security professionals in pinpointing and addressing security risks associated with outdated components. This tool is versatile and can be utilized as a browser extension, command-line scanner, or plugins for popular security tools like Burp Suite and OWASP ZAP.

Key features include vulnerability detection that highlights libraries with known CVEs, passive scanning through browser extensions while users browse, and active scanning of project files via the command line. Detailed reporting provides severity levels, CVE IDs, and links to further information, making it an invaluable resource for developers and penetration testers alike. Overall, retire.js enhances security awareness and helps mitigate risks in web development.