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

[SSLyze](https://cybersectools.com/tools/sslyze) is a free [security scanning](https://cybersectools.com/categories/security-scanning) solution. [testssl.sh](https://cybersectools.com/tools/testsslsh) is a free [security scanning](https://cybersectools.com/categories/security-scanning) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | SSLyze | testssl.sh |
|---|---|---|
| Pricing model | Free | Free |
| Category | Security Scanning | Security Scanning |
| Verified | No | No |
| Deployment type | On-Premises | On-Premises |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | 3,740 | 8,956 |
| Last commit | Dec 2025 | Mar 2026 |

### Use cases and capabilities

| | SSLyze | testssl.sh |
|---|---|---|
| TLS | Yes | Yes |
| SSL | Yes | Yes |
| Protocol | – | Yes |

## SSLyze vs testssl.sh FAQ

Common questions when comparing SSLyze vs testssl.sh for security scanning.

### What is the difference between SSLyze and testssl.sh?

**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.

### Who makes SSLyze and testssl.sh?

**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.

### Is SSLyze a good alternative to testssl.sh?

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.

## Related comparisons

- [SSLyze vs Domain Verity](https://cybersectools.com/compare/domain-verity-vs-sslyze)
- [SSLyze vs CyberChecker](https://cybersectools.com/compare/cyberchecker-vs-sslyze)
- [SSLyze vs Sucuri Website Malware Scanner](https://cybersectools.com/compare/sslyze-vs-sucuri-website-malware-scanner)
- [testssl.sh vs Domain Verity](https://cybersectools.com/compare/domain-verity-vs-testsslsh)
- [testssl.sh vs CyberChecker](https://cybersectools.com/compare/cyberchecker-vs-testsslsh)
- [testssl.sh vs Sucuri Website Malware Scanner](https://cybersectools.com/compare/sucuri-website-malware-scanner-vs-testsslsh)

## Alternatives to each

- [See all SSLyze alternatives](https://cybersectools.com/alternatives/sslyze)
- [See all testssl.sh alternatives](https://cybersectools.com/alternatives/testsslsh)

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Source: https://cybersectools.com/compare/sslyze-vs-testsslsh

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/sslyze.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on SSLyze and testssl.sh: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md