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speedtest-go vs Speedtest CLI: catalog facts
speedtest-go	Speedtest CLI
Free Free and open source under the MIT licence.	Free Free for personal, non-commercial use. Commercial use requires a licence.
Windows, Command line	Windows, macOS, Linux, Command line
Faster test runs than the speedtest.net website Usable as a Go library as well as a CLI	Official client with results comparable to the web test JSON and CSV output suited to scheduled monitoring
Depends on speedtest.net servers No graphical interface	Closed source and licensed for non-commercial use by default Results depend on which Ookla server is selected
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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