testssl.sh
testssl.sh is a free command line tool for checking server's TLS/SSL configurations with clear and machine-readable output.
Exposure & Vulnerability ManagementSecurity ScanningOn-PremisesStartup · SMB · Mid-Market · EnterpriseFree8,956
testssl.sh is a free command line tool for checking server's TLS/SSL configurations with clear and machine-readable output.
Checked October 2026.
testssl.sh is a free command line tool that checks a server's service on any port for the support of TLS/SSL ciphers, protocols, and cryptographic flaws. It provides clear and machine-readable output, works on various operating systems, and does not require additional installations.
The tool offers flexibility to test any SSL/TLS enabled service, not limited to web servers, and ensures reliability, privacy, and freedom as it is open source under GPLv2 license.
No core features are listed for this product yet, so check the vendor's documentation for the full feature list.
No integrations are listed for this product yet. Check the vendor's documentation, or ask the vendor which integrations and APIs it supports.
Common questions about testssl.sh: features, pricing and alternatives.
testssl.sh is a product in the Security Scanning category. It covers TLS, SSL and Protocol.
testssl.sh is free. Download and setup instructions are at https://github.com/testssl/testssl.sh.
Alternatives to testssl.sh listed on CybersecTools:
Compare all testssl.sh alternatives at https://cybersectools.com/alternatives/testsslsh
testssl.sh is available as on-premises software. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.
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