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SSLyze vs tlsx: catalog facts
SSLyze	tlsx
Free Free and open source.	Free The open-source software is available without a license fee. Hosting, hardware and…
Command line	Windows, macOS, Linux, Command line
Fast TLS configuration scanning from the command line JSON output suited to automation	Collects protocol and certificate information for lists of hosts.
No graphical interface Output assumes some knowledge of TLS	Requires reachable TLS services and appropriate probe settings.
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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