Packet Capture (cStor®) vs PacketStreamer: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
Packet Capture (cStor®) is a commercial digital forensics tool by cPacket Networks. PacketStreamer is a free digital forensics tool. Compare features, ratings, integrations, and community reviews side by side to find the best digital forensics fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Enterprise and mid-market security teams investigating protocol-level incidents will find Packet Capture (cStor®) invaluable for its lossless capture at 10–200 Gbps paired with petabyte-scale persistent storage, letting you replay and forensically analyze traffic weeks or months after compromise. The onboard indexing and Wireshark integration mean you're not shipping raw PCAPs offsite for analysis; incident response happens at wire speed with full packet fidelity. This is deliberate forensics tooling, not a detection platform; if you need real-time threat hunting or automated anomaly flagging across the network, you'll want this feeding data to a separate NDR layer.
Cloud security teams performing incident response in containerized environments should adopt PacketStreamer for its ability to capture packets remotely across distributed workloads without deploying agents to every node. The tool's 1,927 GitHub stars and zero licensing cost make it practical for forensics-heavy shops that need to preserve traffic for post-incident analysis across Kubernetes clusters. Skip this if your team expects a turnkey UI or wants packet capture integrated into a larger SIEM; PacketStreamer is deliberately purpose-built for packet collection, not visualization or correlation.
