Compare software

sslscan vs SSLyze: catalog facts
sslscan	SSLyze
Free Free and open source under the GPL-3.0 license.	Free Free and open source.
Windows, Linux, Command line	Command line
Quick report of supported protocols and cipher suites Rewritten scanning backend in version 2	Fast TLS configuration scanning from the command line JSON output suited to automation
Command line only, with no graphical interface No packaged releases on the GitHub page	No graphical interface Output assumes some knowledge of TLS
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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