Compare software

Ethr vs iPerf 2: catalog facts
Ethr	iPerf 2
Free Free and open source under the MIT licence.	Free Free to download from SourceForge.
Windows, macOS, Linux, Command line	Android, Command line
Covers TCP, UDP and ICMP in one tool Same tool on Windows, Linux and macOS	Measures latency, jitter and responsiveness as well as throughput Multicast, bidirectional and full-duplex testing
Command-line only No formal releases listed on the repository	Command-line only on desktop Not wire-compatible with iperf3, which can cause confusion
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.