GrokEVT vs Zeek Analysis Tools (ZAT): Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
GrokEVT is a free digital forensics and incident response tool. Zeek Analysis Tools (ZAT) is a free digital forensics and incident response tool. Compare features, ratings, integrations, and community reviews side by side to find the best digital forensics and incident response fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Forensic analysts and incident responders who need to parse Windows event logs without commercial tools should reach for GrokEVT; it converts raw EVT files to readable formats fast enough to triage during active investigations. The tool is free and maintained on GitHub, removing licensing friction when you're building a lean forensics toolkit. Skip this if your team relies on GUI-driven analysis or needs to correlate events across multiple log sources in a single interface; GrokEVT is a command-line converter, not a log aggregation platform.
Incident response teams already collecting Zeek network logs will extract real value from ZAT's Python-native ML pipeline; you get forensic analysis speed without building custom pandas and scikit-learn workflows from scratch. The 451 GitHub stars and active maintenance signal a tool that teams actually use post-breach, not one gathering dust. Skip this if you need a point-and-click UI or support for non-Zeek data sources; ZAT demands Python fluency and assumes your team is comfortable operationalizing machine learning models in incident workflows.
