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Speedtest CLISpeedtest
Free

Free for personal, non-commercial use. Commercial use requires a licence.

 Free

Free and open source under the GPL-3.0-or-later licence.

Windows, macOS, Linux, Command line Linux
  • Official client with results comparable to the web test
  • JSON and CSV output suited to scheduled monitoring
  • Native GTK4 and libadwaita interface
  • Uses open LibreSpeed servers rather than a commercial service
  • Closed source and licensed for non-commercial use by default
  • Results depend on which Ookla server is selected
  • Linux only
  • Small project with a narrow feature set
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-3.0-or-later
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Needs internet

Checked September 22, 2026

Checked October 1, 2026

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