Arkime vs NetworkMiner

Arkime is a free, open-source network analysis and session search tool that passively observes traffic and creates searchable session records. It parses layers 3–7 and indexes fields including protocols, DNS names, HTTP headers, TLS/JA4 fingerprints, file hashes, and GeoIP in OpenSearch or Elasticsearch. Operators can store full packets in standard PCAP format or use metadata-only capture, with rules to select traffic for saving. Users can search sessions, inspect packet data, and export results as PCAP or CSV. Cont3xt enriches supported indicators using commercial and OSINT sources, including VirusTotal, Censys, and Shodan; phone enrichment is limited to the U.S. Parliament groups clusters and displays cluster issues and Elasticsearch health. Capture can scale by adding machines or increasing CPU and disk. Arkime has no license fees or paid-only features. Installation guidance covers Linux, recommends Debian or Ubuntu LTS, and links to a container guide. OpenSearch or Elasticsearch is required for session metadata. Authentication options include basic, form, digest, header, and OIDC, while the project advises against anonymous authentication.

NetworkMiner analyzes captured network traffic and can sniff live traffic, extracting artifacts such as files, images, emails, and passwords from PCAP files. It also builds a host inventory from IP address information for passive asset discovery and communication overviews. The free edition supports live sniffing and PCAP and ETL parsing on Windows and Linux, but not PcapNG parsing. Professional accepts PcapNG, Pcap-over-IP, and PacketCache data in addition to PCAP, ETL, and live sniffing, and exports results to CSV, JSON-LD, and XML. Its protocol features include file extraction across listed protocols, while VoIP support includes audio extraction from unencrypted calls. Professional also provides OSINT lookups for hashes, IP addresses, domains, and URLs. NetworkMiner does not decrypt HTTPS or other TLS-encrypted sessions. Extracted data stays on the end-user device rather than in the cloud. The source code is GPLv2 free and open source. Netresec warns that opening PCAPs can automatically extract malware and recommends Linux or Windows Sandbox to reduce self-infection risk.