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nPerfSpeedtest CLI
Free

The web speed test is free to run.

 Free

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

Windows, macOS, Android, iOS, Web Windows, macOS, Linux, Command line
  • Measures download, upload and latency
  • Apps for mobile and desktop as well as the web
  • Official client with results comparable to the web test
  • JSON and CSV output suited to scheduled monitoring
  • Not open source
  • Tests against nPerf's own servers only
  • Closed source and licensed for non-commercial use by default
  • Results depend on which Ookla server is selected
Downloadable app, Web application Downloadable app
Closed source Closed source
License not stated License not stated
No account needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 23, 2026

Checked September 22, 2026

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