NodeZero vs Whonow: side-by-side comparison (2026)
NodeZero is a commercial penetration testing solution by Horizon3.ai. Whonow is a free penetration testing solution. Features, integrations, deployment and the company behind each one, side by side.
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Autonomous pentesting platform for internal, external, cloud & K8s testing
A malicious DNS server that executes DNS Rebinding attacks on-demand to bypass same-origin policy restrictions and access internal network resources.
Side-by-side comparison
Feature
NodeZero
Whonow
Pricing model
Commercial
Free
Category
Penetration Testing
Penetration Testing
Deployment and fit
Deployment type
Cloud
On-Premises
Company size fit
Mid-Market, Enterprise
Mid-Market, Enterprise
Open source
GitHub stars
–
654
Last commit
–
Jun 2018
Company
Company
Horizon3.ai
–
Use cases and capabilities
Active Directory
Yes
No
Attack Paths
Yes
No
Kubernetes
Yes
No
AI Pentesting
Yes
No
Server
No
Yes
DNS Rebinding
No
Yes
Core features
10 features listed
No features listed
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