macOS
brew install iperf3local Homebrew formula metadata
sudo port install iperf3MacPorts ports tree · net/iperf3/Portfile · source: api.github.com
brew
Update of iperf: measures TCP, UDP, and SCTP bandwidth. Version 3.21 via Homebrew; verified 2026-06-22.
install
brew install iperf3local Homebrew formula metadata
sudo port install iperf3MacPorts ports tree · net/iperf3/Portfile · source: api.github.com
sudo apk add iperf3Alpine Linux edge package indexes · iperf3 · source: dl-cdn.alpinelinux.org
sudo apt install iperf3Debian stable package indexes · iperf3 · source: deb.debian.org
sudo dnf install iperf3Fedora Rawhide package metadata · iperf3 · source: dl.fedoraproject.org
nix profile install nixpkgs#iperf3nixpkgs package indexes · iperf3 · source: raw.githubusercontent.com
sudo pacman -S iperf3Arch Linux sync databases · iperf3 · source: geo.mirror.pkgbuild.com
choco install iperf3Chocolatey community package catalog · iperf3 · source: community.chocolatey.org
scoop install main/iperf3Scoop official bucket manifest trees · bucket/iperf3.json · source: api.github.com
winget install --id ar51an.iPerf3 -eWindows Package Manager source index · ar51an.iPerf3 · source: cdn.winget.microsoft.com
overview
Update of iperf: measures TCP, UDP, and SCTP bandwidth
history
iperf3 is ESnet and Lawrence Berkeley National Laboratory's redesigned iperf implementation for active measurement of achievable bandwidth on IP networks, adding a smaller code base, library use, SCTP support, zero-copy mode, and JSON output.
iperf3 was built as a clean rewrite of the original NLANR/DAST iperf. Its README says it shares the measurement domain with iperf2 but is not backward compatible, which made the separate `iperf3` executable and package name necessary.
The project is developed by ESnet/Lawrence Berkeley National Laboratory and distributed under a three-clause BSD license. ESnet's download archive shows public 3.0.x tarballs in 2014, while the GitHub repository was created in February 2014.
The README identifies perfSONAR as one of iperf3's primary uses and notes use by ESnet, other research and education networks, the broader networking community, and commercial products.
Package adoption is broad because the tool gives automation-friendly output and a stable `iperf3` command without colliding with legacy iperf2 installations. Homebrew, Linux distributions, Windows package managers, and other ecosystems ship it under the iperf3 name.
The basic workflow remains the classic iperf model: run a server endpoint, run a client against it, select protocol and timing parameters, and read bandwidth, loss, and related measurements.
The package is especially useful in scripted diagnostics because iperf3 offers JSON output, explicit client/server compatibility with other iperf3 builds, and documented behavior around supported platforms and known issues.
iperf3 matters because it is not just a version bump of `iperf`: it is a parallel implementation with its own ABI, CLI behavior, output formats, and release train. Package managers preserve that distinction by shipping `iperf` and `iperf3` separately.
For network engineers, the package is part of the small toolkit used to turn vague throughput complaints into repeatable measurements. For maintainers, it is a canonical example of a command-line tool whose packaging name encodes compatibility.
security posture
narrow executable package without higher-risk signals.
green risk · low confidence · appliance
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
iperf3 | cli | global executable |
freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
https://github.com/esnet/iperf
install metadata
| Package key | brew:iperf3 |
|---|---|
| Version | 3.21 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/iperf3 |
| Homepage | https://github.com/esnet/iperf |
| Repository | https://github.com/esnet/iperf |
| Upstream docs | https://github.com/esnet/iperf#readme |
| License | BSD-3-Clause |
| Source archive | https://downloads.es.net/pub/iperf/iperf-3.21.tar.gz |
| Last updated | 2026-06-22T14:03:47-07:00 |
| Pulse | updated |
| Dependencies | openssl@4 |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | iperf3 |
| Version Scheme | 0 |
| Revision | 1 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
iperf3 3.18-2+deb13u2
Internet Protocol bandwidth measuring tool
sudo apt install iperf3libiperf-dev 3.18-2+deb13u2
Internet Protocol bandwidth measuring tool (development files)
sudo apt install libiperf-devlibiperf0 3.18-2+deb13u2
Internet Protocol bandwidth measuring tool (runtime files)
sudo apt install libiperf0iperf3
nix profile install nixpkgs#iperf3iperf3 3.16-1build2
Internet Protocol bandwidth measuring tool
sudo apt install iperf3libiperf-dev 3.16-1build2
Internet Protocol bandwidth measuring tool (development files)
sudo apt install libiperf-devlibiperf0 3.16-1build2
Internet Protocol bandwidth measuring tool (runtime files)
sudo apt install libiperf0iperf3 3.21-r0
Tool to measure IP bandwidth using UDP or TCP
https://github.com/esnet/iperf
sudo apk add iperf3iperf3-dev 3.21-r0
Tool to measure IP bandwidth using UDP or TCP (development files)
https://github.com/esnet/iperf
sudo apk add iperf3-deviperf3-doc 3.21-r0
Tool to measure IP bandwidth using UDP or TCP (documentation)
https://github.com/esnet/iperf
sudo apk add iperf3-dociperf3-openrc 3.21-r0
Tool to measure IP bandwidth using UDP or TCP (OpenRC init scripts)
https://github.com/esnet/iperf
sudo apk add iperf3-openrciperf3 3.21-1.fc45
Measurement tool for TCP/UDP bandwidth performance
https://github.com/esnet/iperf
sudo dnf install iperf3iperf3-devel 3.21-1.fc45
Development files for iperf3
https://github.com/esnet/iperf
sudo dnf install iperf3-develiperf3 3.21-1
TCP, UDP, and SCTP network bandwidth measurement tool
https://github.com/esnet/iperf
sudo pacman -S iperf3iperf3
sudo port install iperf3iperf3
choco install iperf3source trail
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