ConfigDiff Guard + Network Guardian helps engineers preflight configuration changes, map supplied topology data, detect health risks, and rank likely fault locations. Passive mode stays offline; proactive checks are bounded to authorized private IPs. The Windows desktop app requires no Python or coding.

ConfigDiff Guard is an offline, read-only Python tool for network engineers. Compare current and proposed plain-text configurations, redact likely secrets, flag high-impact changes, and generate review-ready reports before a maintenance window. Start free with Lite for shutdowns, default routes, AAA, and IP changes. Upgrade to Full for ACL/firewall, routing, VLAN/VRF, MTU, telemetry, JSON output, and CI thresholds. No account, packages, API keys, or device login.