SSLyze vs testssl.sh: side-by-side comparison (2026)

SSLyze: SSLyze is a fast and powerful SSL/TLS scanning tool and Python library with a focus on speed, reliability, and ease of integration.

testssl.sh: Testssl.sh is a free command line tool for checking server's TLS/SSL configurations with clear and machine-readable output.

The table above shows where their features, integrations, deployment and company size fit differ.

SSLyze is open-source with 3,740 GitHub stars. testssl.sh is open-source with 8,956 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. SSLyze and testssl.sh are both Security Scanning products, and both cover TLS, SSL. Use the table above to see where features, deployment and company size fit differ.