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nPerf vs Waveform Bufferbloat Test: catalog facts
nPerf	Waveform Bufferbloat Test
Free The web speed test is free to run.	Free The test runs in the browser at no cost.
Windows, macOS, Android, iOS, Web	Web
Measures download, upload and latency Apps for mobile and desktop as well as the web	Measures latency under load, not only raw speed Runs in the browser with nothing to install
Not open source Tests against nPerf's own servers only	Hosted on a retailer's site Tests only the connection from the device running it
Downloadable app, Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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