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httpmon provides both quick substring filtering and advanced filter expressions to narrow down captured flows.
httpmon filtering

Quick filter

Press / in the flow list to focus the filter bar. Type any text to perform a case-insensitive substring match against the host and path of each flow.

Advanced filter expressions

For more precise filtering, use structured expressions. Separate multiple terms with spaces to combine them with AND logic.

Examples

Filter all successful GET requests:
Filter JSON responses, excluding client errors:
Filter URLs matching a regex pattern:

Learn more

See the filter syntax reference for the full list of operators and pattern rules.