TCP Viewer Portable

TCP Viewer Portable provides portable visibility into TCP connections by analyzing captured traffic data or live traces. It focuses on essential connection metadata such as endpoints, state transitions, and timing metrics, enabling quick validation of network behavior in development and testing. The tool is designed as a portable artifact requiring no installation, suitable for on-demand diagnostics across operating environments.
Conceptually, it consumes capture data (pcap-like) or live streams, reconstructs per-connection flows using the 5-tuple (src/dst IP and ports), and derives metrics such as handshake timing, RTT, and throughput. Results are presented as structured records that facilitate filtering, aggregation, and export. It does not decrypt payloads and does not perform deep packet inspection.
Who benefits: developers debugging client-server apps, QA engineers validating port behavior, network admins during incident response, and SREs verifying latency budgets in CI pipelines. Unique value: portable, no installation, cross-platform, support for both live and offline data, and export-ready outputs. Core features include connection enumeration, per-connection timing metrics, filtering by host/port, basic aggregation, UTC timestamps, and export formats.