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iperf

alternative to Speedtest by Ookla

iperf

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3.222026-09-29iperf-3.22
3.212026-04-09iperf-3.21
3.202025-11-14iperf-3.20
3.19.12025-07-25iperf-3.19.1
3.192025-05-16iperf-3.19

unsigned The latest release, 3.22, carries no signature GitHub could verify.

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Speedtest by OoklaThroughput tests between two hosts you control; no public server network.Partial

About

iperf3: A TCP, UDP, and SCTP network bandwidth measurement tool

CSpeed testsOther

Owner: ESnet: Energy Sciences Network organisation
Stars: 8.8k
Forks: 1.5k
Latest: 3.22
Last push: 2026-10-09
Terms: Open source
Self-hosted: Yes
Created: 2014, 12 years ago
Release cadence: about 129 days between releases
Active contributors: 6 commit authors on the default branch in the last 90 days
Stars over 4 days: 2026-10-07 8,8002026-10-10 8,810

Read from GitHub on 2026-10-10.Entry last edited on 2026-10-07.

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#iperf3

github.com/esnet/iperf ↗Website ↗Edit this entry Changes to iperf (RSS)

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