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SSLyze vs Hardenize: catalog facts
SSLyze	Hardenize
Free Free and open source.	Freemium The public report is free; continuous monitoring is a paid service.
Command line	Web
Fast TLS configuration scanning from the command line JSON output suited to automation	Free public configuration report for any domain Continuous certificate and perimeter monitoring for organisations
No graphical interface Output assumes some knowledge of TLS	Monitoring features are aimed at organisations rather than individuals Little public detail about pricing
Downloadable app	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	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.