Nsauditor Network Security Auditor is a commercial vulnerability assessment solution by Nsasoft US LLC. Semperis Purple Knight is a free vulnerability assessment solution by Semperis. Features, integrations, deployment and the company behind each one, side by side.
Windows suite for network security auditing, vuln scanning, and IT mgmt.
Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning
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Based on what each listing shows: deployment, company size, price and open source.
Nsauditor Network Security Auditor fits if you need to run it on your own servers.
Semperis Purple Knight fits if you want a cloud product, you are a startup and you need a free product.
Common questions when comparing Nsauditor Network Security Auditor vs Semperis Purple Knight for vulnerability assessment.
Nsauditor Network Security Auditor: Windows suite for network security auditing, vuln scanning, and IT mgmt. Built by Nsasoft US LLC.
Semperis Purple Knight: Free AD, Entra ID, and Okta security assessment tool for vulnerability scanning. Built by Semperis.
The table above shows where their features, integrations, deployment and company size fit differ.
Nsauditor Network Security Auditor is made by Nsasoft US LLC. Semperis Purple Knight is made by Semperis. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Nsauditor Network Security Auditor and Semperis Purple Knight are both Vulnerability Assessment products. Key differences: Nsauditor Network Security Auditor is Commercial while Semperis Purple Knight is Free. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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