iperf3

Install command: 
brew install iperf3

Update of iperf: measures TCP, UDP, and SCTP bandwidth

https://github.com/esnet/iperf

License: BSD-3-Clause

Development: Pull requests

Formula JSON API: /api/formula/iperf3.json

Formula code: iperf3.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon		 golden gate ✅
tahoe ✅
sequoia ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 3.22
head ⚡️ HEAD

Depends on:

openssl@4 4.1.0 Cryptography and SSL/TLS Toolkit

Binaries: iperf3

GitHub Packages downloads:

Last 30 days49,166
Downloads2,130,487
Analytics install events (30 days)6,871
Downloads / install events (30 days)7.2×

Source: GitHub Packages, fetched 2026-11-09T00:52:09Z. Analytics dates: 2026-10-10 to 2026-11-09. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.

Analytics:

30 days90 days365 days
Installs6,86419,24485,296
Installs (--HEAD)725115
Installs on Request6,85819,23785,284
Installs on Request (--HEAD)725115
Build Errors4