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

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