Software & Tools / Lemoa iperf3
Windows · Network testing

Measure the network—not the internet.

A straightforward graphical interface for testing real throughput between devices and across switches, access points and routed links.

Server and client testing in one application

Select the relevant network interface, start a temporary server or point the client to another iperf3 endpoint. The tool exposes common professional test modes without requiring users to memorise command-line options.

Included capabilities

  • Server and client modes
  • TCP and UDP throughput testing
  • Reverse and bidirectional tests
  • Parallel streams and interface selection
  • Temporary Windows Private-network firewall rules in server mode
  • Readable live output and repeatable test settings
Security note: Server mode requests administrator approval only to manage the temporary firewall access it requires. The rule is removed when the server stops or the application is uninstalled.
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