Features, pricing, ratings, and pros & cons — compared head-to-head.
ExtraHop Packet Forensics is a commercial digital forensics tool by ExtraHop. replayproxy 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.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Enterprise and mid-market security teams investigating breach scope and data exfiltration will get the most from ExtraHop Packet Forensics because it gives you full packet history to answer "what actually moved across the wire" without waiting for logs. Continuous capture across hybrid environments, searchable within seconds, covers the gap between detection alerts and forensic proof; chain-of-custody collection means findings hold up in incident response and legal review. Skip this if your environment is primarily SaaS-based or you lack the storage budget for petabyte-scale packet retention; the value proposition assumes you're already capturing at scale and need fast, defensible answers from that data.
Forensic analysts and incident responders who need to reconstruct attacker behavior from network captures will find replayproxy invaluable for its ability to replay HTTP sessions directly from pcap files without manual extraction. The tool's lightweight design and zero-cost entry point make it practical for resource-constrained SOCs running ad-hoc investigations. Skip this if you need production-grade proxying or support for encrypted protocols; replayproxy solves a narrow forensic use case, not general proxy infrastructure.
Continuous full packet capture and forensics for network investigations
replayproxy allows you to 're-live' a HTTP session captured in a .pcap file, parsing HTTP streams, caching them, and starting a HTTP proxy to reply to requests with matching responses.
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Common questions about comparing ExtraHop Packet Forensics vs replayproxy for your digital forensics needs.
ExtraHop Packet Forensics: Continuous full packet capture and forensics for network investigations. built by ExtraHop. Core capabilities include Continuous full packet capture across on-premises and cloud environments, Built-in packet viewer with file carving capabilities, Indexed and searchable detections, transaction records, and packets..
replayproxy: replayproxy allows you to 're-live' a HTTP session captured in a .pcap file, parsing HTTP streams, caching them, and starting a HTTP proxy to reply to requests with matching responses..
Both serve the Digital Forensics market but differ in approach, feature depth, and target audience.
ExtraHop Packet Forensics and replayproxy serve similar Digital Forensics use cases: both are Digital Forensics tools, both cover PCAP. Key differences: ExtraHop Packet Forensics is Commercial while replayproxy is Free, replayproxy is open-source. Review the feature comparison above to determine which fits your requirements.
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