iperf3

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

iperf3 is ranked #3 of 39 in network diagnostic software on Inferse. It runs on API, Linux, macOS, Self-hosted. There is a free plan.

Compared on network diagnostic software

Free plan: Yessoftware.es.net
Deployment: desktopsoftware.es.net
Path visualization: Nosoftware.es.net
DNS diagnostics: Nosoftware.es.net
Packet-loss analysis: Yessoftware.es.net
Command-line interface: Yessoftware.es.net
Supported platforms: Ubuntu Linux, FreeBSD, macOSsoftware.es.net

Facts

Purpose: iperf3 measures achievable bandwidth on IP networks and reports throughput, loss, and other test results.software.es.net · 2 Oct 2026
Protocols: It measures TCP, UDP, or SCTP throughput and includes both client and server functionality.software.es.net · 2 Oct 2026
Test options: Users can tune test parameters related to timing, protocols, and buffers.software.es.net · 2 Oct 2026
Output: Client or server output can be emitted as JSON, including line-delimited JSON for real-time parsing.software.es.net · 2 Oct 2026
Library: iperf3 includes a library version of its functionality that can be used in other programs.software.es.net · 2 Oct 2026
License: iperf3 is released under a three-clause BSD license.software.es.net · 2 Oct 2026
Supported platforms: Ubuntu Linux, FreeBSD, and macOS are the only officially supported platforms listed by the project.software.es.net · 2 Oct 2026
Windows support: iperf3 is not officially supported on Windows, and the FAQ recommends iperf2 for Windows users having trouble.software.es.net · 2 Oct 2026
Distribution: ESnet does not distribute binary packages; the project lists third-party packages and provides source distributions.software.es.net · 2 Oct 2026
Integrity: The project recommends verifying SHA256 checksums for source distributions before use.software.es.net · 2 Oct 2026
Security: The project directs reports of potential security issues to [email protected].software.es.net · 2 Oct 2026
Integrations: iperf3 was developed initially as the bandwidth tester for the perfSONAR measurement suite, which the project identifies as its primary user base.software.es.net · 2 Oct 2026
Support: The project provides a developer mailing list and GitHub issue tracker for questions and bug reports.software.es.net · 2 Oct 2026
Compatibility limit: iperf3 is not backwards compatible with the original iperf.software.es.net · 2 Oct 2026
Latest release: The project news page lists iperf-3.22 as released on 2026-09-29, with security and minor bug fixes.software.es.net · 2 Oct 2026