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Speedtest CLISpeedtest by Ookla
Free

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

 Free

Free on the web and in the desktop and mobile apps.

Windows, macOS, Linux, Command line Windows, macOS, Android, iOS, Web
  • Official client with results comparable to the web test
  • JSON and CSV output suited to scheduled monitoring
  • Works in a browser or in apps for most platforms
  • Picks a nearby test server automatically
  • Closed source and licensed for non-commercial use by default
  • Results depend on which Ookla server is selected
  • Closed source
  • Site includes links to other Ookla services alongside the test
Downloadable app Downloadable app, Web application
Closed source Closed source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Needs internet

Checked September 22, 2026

Checked September 23, 2026

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