SN Code Guardian is a Chrome add-on designed to enhance code quality for ServiceNow users. This tool conducts real-time analysis of scripts, identifying anti-patterns, security vulnerabilities, and performance issues before they can affect production. With 50 built-in checks across four key categories—Performance, Security, Code Quality, and Governance—it provides a thorough overview of potential pitfalls in your code.

The add-on supports over 20 different ServiceNow script types, including Business Rules, Client Scripts, and Scripted REST APIs. Users benefit from a sidebar panel that categorizes findings, the option to export reports in JSON or CSV formats, and the ability to customize severity filters and category toggles for a tailored experience. Importantly, all analysis is performed locally, ensuring that no code is transmitted to external servers.