Compare software

CryptCheck vs sslscan: catalog facts
CryptCheck	sslscan
Free Free to use in the browser.	Free Free and open source under the GPL-3.0 license.
Web	Windows, Linux, Command line
Checks HTTPS, SMTP and XMPP servers Detailed protocol and cipher information	Quick report of supported protocols and cipher suites Rewritten scanning backend in version 2
Interface is in French Little documentation on the home page	Command line only, with no graphical interface No packaged releases on the GitHub page
Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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