A packet generator or packet builder is a type of software that generates random or allows the user to construct detailed custom packets. Depending on the network medium and operating system, packet generators utilize, function calls, or direct access to the network adapter. This is useful for testing implementations of IP stacks for and.

Dedicated capture tools; Monitoring/tracing tools; Traffic generators; Capture file anonymization; Capture file repair; Capture file conversion; Collections. (GPL, Windows). Netsniff-ng is a free, Linux network analyzer and networking toolkit. NetworkMiner A network forensic analysis tool (GPL, Windows). Network traffic generator and network test tool. Load test and functional test. Many Protocols. GUI and Python API. Windows, Linux, Mac OSX, BSD.