ClickStack leverages event patterns to enhance log and event analysis by clustering similar logs and traces, allowing users to identify key behaviors and anomalies without predefined rules. Built on the Drain3 algorithm, ClickStack performs dynamic pattern analysis directly in the browser, enabling engineers to manage large volumes of unstructured data more efficiently. The system mitigates the challenge of dissecting logs by automatically detecting and grouping recurring structures, offering a high-level overview of data and surfacing both frequent patterns, which indicate normal behavior, and rare patterns, which may reveal anomalies. This approach complements traditional search methods and aids in improving observability by helping teams identify redundant logs and improve logging practices. Event patterns are integrated at query time, avoiding the computational expense of clustering at ingestion, and using a sampling strategy to maintain efficiency and accuracy. ClickStack's use of Pyodide allows it to execute Python code directly in the browser for seamless interaction and visualization, providing a practical solution for navigating complex data landscapes and setting the stage for future advancements in analytics and data compression.