Event Query Language (EQL) vs Zeek Analysis Tools (ZAT): Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Event Query Language (EQL) is a free threat hunting tool. Zeek Analysis Tools (ZAT) is a free threat hunting tool. Compare features, ratings, integrations, and community reviews side by side to find the best threat hunting fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Threat hunters and SOC analysts who need to pivot quickly between log sources will value Event Query Language for its syntax consistency across disparate data types; you write one query and run it against logs, network telemetry, or endpoint data without relearning grammar. The native Elasticsearch integration eliminates friction for teams already indexing there, and the free pricing removes budget friction entirely. This is not the tool for organizations needing a GUI-first threat hunting experience or those without existing log aggregation infrastructure in place.
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.
