testssl.sh is a command-line tool that checks a server’s service on any port for support of TLS/SSL ciphers and protocols as well as cryptographic flaws.
This is free and open source software.
Key Features
- Tests TLS/SSL ciphers, protocols and cryptographic flaws.
- Works with TLS/SSL-enabled and STARTTLS services on any port.
- Offers clear output showing whether findings are good or bad.
- Provides CSV, JSON and HTML output.
- Requires no installation or language-specific package dependencies.
- Runs on Linux, macOS, FreeBSD, NetBSD, WSL2 and MSYS2/Cygwin.
- Offers numerous command-line options for configuring tests and output.
- Keeps test results private rather than sending them to a third party.
- Available as a standalone script or container image.
Website: github.com/testssl/testssl.sh
Support:
Developer: Dirk Wetter and contributors
License: GNU General Public License v2.0
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Read our verdict in the software roundup.
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