Nebula by BreachLine Labs vs Shadow Workers: side-by-side comparison (2026)
Nebula by BreachLine Labs is a commercial penetration testing solution by BreachLine Labs. Shadow Workers is a free red-team & adversary emulation solution. Features, integrations, deployment and the company behind each one, side by side.
Fully autonomous AI security engineer that works for you
Shadow Workers is an open source C2 framework and proxy tool for penetration testers to exploit XSS vulnerabilities and malicious Service Workers.
Side-by-side comparison
Feature
Nebula by BreachLine Labs
Shadow Workers
Pricing model
Commercial
Free
Category
Penetration Testing
Red-Team & Adversary Emulation
Deployment and fit
Deployment type
Cloud
On-Premises
Company size fit
Mid-Market, Enterprise
Mid-Market, Enterprise
Open source
GitHub stars
–
236
Last commit
–
Oct 2023
Company
Company
BreachLine Labs
–
Use cases and capabilities
AI Pentesting
Yes
No
Attack Paths
Yes
No
Vulnerability Exploitation
Yes
No
Proof of Concept
Yes
No
Continuous Testing
Yes
No
Validation
Yes
No
Verification
Yes
No
Security Reporting
Yes
No
Reconnaissance
Yes
No
VAPT
Yes
No
C2
No
Yes
Proxy
No
Yes
Open Source
No
Yes
XSS
No
Yes
Core features
8 features listed
No features listed
Integrations
15 integrations listed
No integrations listed
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