SecretScanner is a standalone security tool designed to identify and locate sensitive data within container images and host filesystems. The tool operates by scanning file contents and matching them against a comprehensive database containing approximately 140 different types of secrets and sensitive information patterns. The scanner can detect various forms of unprotected secrets including passwords, AWS access keys, AWS secret access keys, Google OAuth keys, and other authentication credentials that may be inadvertently exposed in code repositories, configuration files, or container images. SecretScanner functions as both a container security tool and a filesystem analysis utility, making it suitable for DevSecOps workflows and security auditing processes. The tool helps organizations identify potential security vulnerabilities caused by hardcoded secrets or improperly stored credentials that could be exploited by attackers. The scanner's database covers a wide range of secret types commonly found in enterprise environments, enabling comprehensive detection of sensitive data across different platforms and services. This makes it useful for security teams conducting regular audits of their infrastructure and development environments.