Community edition
Free
TCP and UDP testing · throughput and latency metrics · multicast and IPv4/IPv6 support
Checked 7 Oct 2026
Plans and prices
iPerf2 pricing
Iperf 2 open-source edition
Free
Requires separate client and server instances · command-line operation · socket-level measurements exclude protocol-header overhead
Checked 14 Oct 2026
Professional edition
Free
Compile-time feature set · permit-key access gating · server-side latency histograms · UDP L4S support
Checked 7 Oct 2026