# Intruder Attack Surface Management vs s3viewer: side-by-side comparison (2026)

[Intruder Attack Surface Management](https://cybersectools.com/tools/intruder-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Intruder](https://cybersectools.com/companies/intruder). [s3viewer](https://cybersectools.com/tools/s3viewer) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Intruder Attack Surface Management | s3viewer |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| GitHub stars | – | 448 |
| Last commit | – | Jul 2023 |
| Company | Intruder | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Intruder Attack Surface Management | s3viewer |
|---|---|---|
| Azure | Yes | Yes |
| AWS | Yes | Yes |
| S3 | – | Yes |
| Misconfiguration | – | Yes |

### Core features

**Intruder Attack Surface Management**

10 features listed. Sign in on the page to see them.

**s3viewer**

No features listed.

### Integrations

**Intruder Attack Surface Management**

18 integrations listed. Sign in on the page to see them.

**s3viewer**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [s3viewer](https://cybersectools.com/tools/s3viewer) fits if you need a free product and you want an open-source product.

## Intruder Attack Surface Management vs s3viewer FAQ

Common questions when comparing Intruder Attack Surface Management vs s3viewer for external attack surface management.

### What is the difference between Intruder Attack Surface Management and s3viewer?

**Intruder Attack Surface Management**: Attack surface mgmt platform with vuln scanning and cloud security features. Built by Intruder.

**s3viewer**: A storage exploration tool that provides unified access to view publicly accessible Amazon S3 buckets, Azure Blob storage, FTP servers, and HTTP directory listings.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Intruder Attack Surface Management and s3viewer?

**Intruder Attack Surface Management** is made by Intruder. **s3viewer** is open-source with 448 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Intruder Attack Surface Management a good alternative to s3viewer?

Often, yes. Intruder Attack Surface Management and s3viewer are both External Attack Surface Management products, and both cover Azure, AWS. Key differences: Intruder Attack Surface Management is Commercial while s3viewer is Free, s3viewer is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Intruder Attack Surface Management vs Siemba EASM](https://cybersectools.com/compare/intruder-attack-surface-management-vs-siemba-easm)
- [Intruder Attack Surface Management vs Strobes Attack Surface Management](https://cybersectools.com/compare/intruder-attack-surface-management-vs-strobes-attack-surface-management)
- [Intruder Attack Surface Management vs Cyber Exposure Manager](https://cybersectools.com/compare/galileo-security-vs-intruder-attack-surface-management)
- [s3viewer vs Siemba EASM](https://cybersectools.com/compare/s3viewer-vs-siemba-easm)
- [s3viewer vs Strobes Attack Surface Management](https://cybersectools.com/compare/s3viewer-vs-strobes-attack-surface-management)
- [s3viewer vs Cyber Exposure Manager](https://cybersectools.com/compare/galileo-security-vs-s3viewer)

## Alternatives to each

- [See all Intruder Attack Surface Management alternatives](https://cybersectools.com/alternatives/intruder-attack-surface-management)
- [See all s3viewer alternatives](https://cybersectools.com/alternatives/s3viewer)

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Source: https://cybersectools.com/compare/intruder-attack-surface-management-vs-s3viewer

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More on Intruder Attack Surface Management and s3viewer: 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