s3viewer vs Vulneri ASM: side-by-side comparison (2026)
s3viewer is a free external attack surface management solution. Vulneri ASM is a commercial external attack surface management solution by Vulneri. Features, integrations, deployment and the company behind each one, side by side.
A storage exploration tool that provides unified access to view publicly accessible Amazon S3 buckets, Azure Blob storage, FTP servers, and HTTP directory listings.
ASM platform for continuous discovery and risk validation of internet-exposed assets.
Side-by-side comparison
Feature
s3viewer
Vulneri ASM
Pricing model
Free
Commercial
Category
External Attack Surface Management
External Attack Surface Management
Deployment and fit
Deployment type
Cloud
Cloud
Company size fit
SMB, Mid-Market, Enterprise
SMB, Mid-Market, Enterprise
Open source
GitHub stars
448
–
Last commit
Jul 2023
–
Company
Company
–
Vulneri
Use cases and capabilities
Azure
Yes
No
S3
Yes
No
AWS
Yes
No
Misconfiguration
Yes
Yes
Attack Paths
No
Yes
Vulnerability Prioritization
No
Yes
Reconnaissance
No
Yes
Network Discovery
No
Yes
Visibility
No
Yes
Security Reporting
No
Yes
Inventory
No
Yes
Third Party Security
No
Yes
Vulnerability
No
Yes
Core features
No features listed
10 features listed
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