TCPFLOW vs fatt: 2026 Comparison
TCPFLOW is a free digital forensics and incident response tool. fatt 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:
Forensics teams and incident responders who need to reconstruct network conversations during investigations should reach for TCPFLOW for its ability to reassemble TCP streams into readable payloads without the overhead of full packet capture tools. At 1,745 GitHub stars and free deployment, it's lightweight enough to run on resource-constrained endpoints or jump boxes where heavier PCAP analysis platforms won't fit. Skip this if your mandate is real-time threat hunting or continuous network monitoring; TCPFLOW is a surgical instrument for post-incident analysis, not a perimeter sensor.
Incident response teams who need to pivot quickly from packet captures to threat hunting will find fatt indispensable; it extracts JA3 and HASSH fingerprints that let you correlate C2 signatures across your full traffic history in minutes instead of hours. Free and 679 GitHub stars means it's already baked into most mature IR playbooks, lowering your team's time-to-triage on network-based indicators. Skip this if you're looking for packet analysis beyond metadata extraction or need a GUI; fatt is CLI-only and does one job well, which is exactly why it works.
