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iPerf 2IPerf3Client
Free

Free to download from SourceForge.

 Free

Free and open source under the GPL-3.0 licence.

Android, Command line Android
  • Measures latency, jitter and responsiveness as well as throughput
  • Multicast, bidirectional and full-duplex testing
  • Supports TCP, UDP and SCTP over IPv4 and IPv6
  • Tunable timing, buffer and protocol settings
  • Command-line only on desktop
  • Not wire-compatible with iperf3, which can cause confusion
  • Needs an iPerf3 server to test against
  • Small project with infrequent updates
Downloadable app Downloadable app
Open source Open source
License not stated License: GPL-3.0-or-later
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

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