Wireshark is the world’s foremost and widely-used network protocol analyzer. It lets you see what’s happening on your network at a microscopic...
Best Zeek (formerly Bro) Alternatives ranked by AI · updated May 2025
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Zeek is a powerful network analysis framework that is much more than just a packet sniffer. It can generate logs for various network traffic analysis tasks.
Price: Free
Top 6 Zeek (formerly Bro) alternatives
tcpdump is a command-line packet analyzer. It allows the user to display TCP/IP and other packets being transmitted or received over a...
3
Scapy is a powerful interactive packet manipulation program. It is used for network exploration and security auditing.
Ostinato is an open-source network packet crafter/traffic generator with a friendly GUI. It aims to be "Wireshark in Reverse" and become complementary...
Bit-Twist is a libpcap-based Ethernet packet generator for replaying and modifying captured network traffic. It is aimed at network engineers and security...
Pros
- Simple command-line workflow for replaying PCAP files
- Can edit packet headers and payloads before transmission
- Lightweight compared with full traffic-generation suites
Cons
- Less flexible for programmatic packet construction than Scapy
- No graphical interface for building or inspecting traffic
- Traffic-generation features are narrower than Tcpreplay or TRex
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