iperf3 binaries for Windows. Benchmark your network limits.
1,980
25 commits
updated Sep 30, 2026
Benchmark your network limits
iperf3 can be used to measure maximum network throughput. It allows to calibrate several parameters like timing, buffers, protocols and streams that can help in network optimization. Each test shows various network performance metrics including throughput, jitter and packet loss. iperf3 results are considered much more accurate and reliable.
Last official binary release version was 3.1.3 for Windows in 2016 . This repo is created for iperf3 pre-compiled binaries for Windows. The goal is to create iperf3 Windows executable without any modification in original source code. Each binary released is checked with VirusTotal before upload.
| iperf Ver | Cygwin Ver | OS | OpenSSL Ver |
|---|---|---|---|
| 3.22 | 3.6.10-1.x86_64 | Win11 64-bit | 3.5.8 |
| 3.21 | 3.6.7-1.x86_64 | Win11 64-bit | 3.0.19 |
| 3.20 | 3.6.5-1.x86_64 | Win11 64-bit | 3.0.18 |
Variations of available release files summarized below:
Release File OpenSSL Extra Feature Info iperf-<ver>-win64.zipNo Recommendediperf-<ver>-win64-static-auth.zipYes authentication iperf-<ver>-win64-dynamic-auth.zipYes authentication iperf-<ver>-win7-64Bit.zipNo For Win7
NOTE:
Optional features in iperf3 are OS specific. Some features utilize functions and modules that are available under certain kernels.iperf -vlists available features.
Reference
Updates about iperf3 Windows binary release are available in a discussion thread at Neowin maintained by budman. It is mentioned in official docs at Obtaining iperf3.
Public Servers:
• https://github.com/R0GGER/public-iperf3-servers - Recommended
• https://as62240.net/speedtest
• Few US Servers:
Server Name Location Ports nyc.speedtest.clouvider.net NY 5200-5209 speedgauge2.optonline.net NY 5201 charlotte02.speedtest.windstream.net NC 5201 iperf3.velocityonline.net FL 5201-5210 la.speedtest.clouvider.net LA 5200-5209 iperf.scottlinux.com CA 5201
Manual:
• https://software.es.net/iperf/invoking.html#iperf3-manual-page
Source Code:
• https://github.com/esnet/iperf
| Test | Cmd |
|---|---|
| TCP Download | iperf3.exe -c <server> -P 10 -4 -R |
| TCP Upload | iperf3.exe -c <server> -P 10 -4 |
| UDP Download | iperf3.exe -c <server> -u -P 10 -4 -R |
| UDP Upload | iperf3.exe -c <server> -u -P 10 -4 |
esnet/iperf source code copyright and disclaimer applies to this binary distribution. Check License for further details.
29 followers · starred May 2025
247 followers · starred Jul 2025
155 followers · starred Oct 2023
103 followers · starred Apr 2024
iperf3 binaries for Windows. Benchmark your network limits.
1,980
25 commits
updated Sep 30, 2026
Benchmark your network limits
iperf3 can be used to measure maximum network throughput. It allows to calibrate several parameters like timing, buffers, protocols and streams that can help in network optimization. Each test shows various network performance metrics including throughput, jitter and packet loss. iperf3 results are considered much more accurate and reliable.
Last official binary release version was 3.1.3 for Windows in 2016 . This repo is created for iperf3 pre-compiled binaries for Windows. The goal is to create iperf3 Windows executable without any modification in original source code. Each binary released is checked with VirusTotal before upload.
| iperf Ver | Cygwin Ver | OS | OpenSSL Ver |
|---|---|---|---|
| 3.22 | 3.6.10-1.x86_64 | Win11 64-bit | 3.5.8 |
| 3.21 | 3.6.7-1.x86_64 | Win11 64-bit | 3.0.19 |
| 3.20 | 3.6.5-1.x86_64 | Win11 64-bit | 3.0.18 |
Variations of available release files summarized below:
Release File OpenSSL Extra Feature Info iperf-<ver>-win64.zipNo Recommendediperf-<ver>-win64-static-auth.zipYes authentication iperf-<ver>-win64-dynamic-auth.zipYes authentication iperf-<ver>-win7-64Bit.zipNo For Win7
NOTE:
Optional features in iperf3 are OS specific. Some features utilize functions and modules that are available under certain kernels.iperf -vlists available features.
Reference
Updates about iperf3 Windows binary release are available in a discussion thread at Neowin maintained by budman. It is mentioned in official docs at Obtaining iperf3.
Public Servers:
• https://github.com/R0GGER/public-iperf3-servers - Recommended
• https://as62240.net/speedtest
• Few US Servers:
Server Name Location Ports nyc.speedtest.clouvider.net NY 5200-5209 speedgauge2.optonline.net NY 5201 charlotte02.speedtest.windstream.net NC 5201 iperf3.velocityonline.net FL 5201-5210 la.speedtest.clouvider.net LA 5200-5209 iperf.scottlinux.com CA 5201
Manual:
• https://software.es.net/iperf/invoking.html#iperf3-manual-page
Source Code:
• https://github.com/esnet/iperf
| Test | Cmd |
|---|---|
| TCP Download | iperf3.exe -c <server> -P 10 -4 -R |
| TCP Upload | iperf3.exe -c <server> -P 10 -4 |
| UDP Download | iperf3.exe -c <server> -u -P 10 -4 -R |
| UDP Upload | iperf3.exe -c <server> -u -P 10 -4 |
esnet/iperf source code copyright and disclaimer applies to this binary distribution. Check License for further details.
29 followers · starred May 2025
247 followers · starred Jul 2025
155 followers · starred Oct 2023
103 followers · starred Apr 2024
