# Attack Surface Scan vs OWASP Amass: side-by-side comparison (2026)

[Attack Surface Scan](https://cybersectools.com/tools/attack-surface-scan) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Attack Surface Scan](https://cybersectools.com/companies/attack-surface-scan). [OWASP Amass](https://cybersectools.com/tools/owasp-amass) 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, Google Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Attack Surface Scan | OWASP Amass |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 14,260 |
| Last commit | – | Sep 2025 |
| Company | Attack Surface Scan | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Attack Surface Scan | OWASP Amass |
|---|---|---|
| DNS Security | Yes | – |
| TLS | Yes | – |
| SSL | Yes | – |
| Subdomain Enumeration | Yes | – |
| Security Scanning | Yes | – |
| Alerting | Yes | – |
| Fingerprinting | Yes | – |
| DMARC | Yes | – |
| SPF | Yes | – |
| Security Reporting | Yes | – |
| Network Mapping | – | Yes |
| OSINT | – | Yes |

### Core features

**Attack Surface Scan**

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

**OWASP Amass**

No features listed.

### Integrations

**Attack Surface Scan**

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

**OWASP Amass**

No integrations listed.

## Which one fits you

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

- [Attack Surface Scan](https://cybersectools.com/tools/attack-surface-scan) fits if you want a cloud product.
- [OWASP Amass](https://cybersectools.com/tools/owasp-amass) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.

## Attack Surface Scan vs OWASP Amass FAQ

Common questions when comparing Attack Surface Scan vs OWASP Amass for external attack surface management.

### What is the difference between Attack Surface Scan and OWASP Amass?

**Attack Surface Scan**: Agentless external attack surface monitoring with continuous change detection, built by Attack Surface Scan.

**OWASP Amass**: Performs network mapping of attack surfaces and external asset discovery using open source information gathering and active reconnaissance techniques.

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

### Who makes Attack Surface Scan and OWASP Amass?

**Attack Surface Scan** is made by Attack Surface Scan. **OWASP Amass** is open-source with 14,260 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Attack Surface Scan a good alternative to OWASP Amass?

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

## Related comparisons

- [Attack Surface Scan vs SurfaceDiff](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff)
- [Attack Surface Scan vs MGM Security Partners recon me](https://cybersectools.com/compare/attack-surface-scan-vs-mgm-security-partners-recon-me)
- [Attack Surface Scan vs crt.guru](https://cybersectools.com/compare/attack-surface-scan-vs-crtguru)
- [OWASP Amass vs SurfaceDiff](https://cybersectools.com/compare/owasp-amass-vs-surfacediff)
- [OWASP Amass vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-owasp-amass)
- [OWASP Amass vs crt.guru](https://cybersectools.com/compare/crtguru-vs-owasp-amass)

## Alternatives to each

- [See all Attack Surface Scan alternatives](https://cybersectools.com/alternatives/attack-surface-scan)
- [See all OWASP Amass alternatives](https://cybersectools.com/alternatives/owasp-amass)

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Source: https://cybersectools.com/compare/attack-surface-scan-vs-owasp-amass

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/attack-surface-scan.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Attack Surface Scan and OWASP Amass: 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