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OpenSpeedTestnPerf
Free

Free to use. Self-hosting is available under its own licence terms.

 Free

The web speed test is free to run.

Web, Self-hosted Windows, macOS, Android, iOS, Web
  • Runs in any browser with no app or plugin
  • Docker image makes internal LAN throughput testing trivial
  • Measures download, upload and latency
  • Apps for mobile and desktop as well as the web
  • Browser-based measurement caps out below what dedicated tools reach
  • The hosted version's accuracy depends on server location
  • Not open source
  • Tests against nPerf's own servers only
Web application, Self-hosted Downloadable app, Web application
Open 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.