# SurfaceDiff vs ZoomEye: side-by-side comparison (2026)

[SurfaceDiff](https://cybersectools.com/tools/surfacediff) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [SurfaceDiff](https://cybersectools.com/companies/surfacediff). [ZoomEye](https://cybersectools.com/tools/zoomeye) 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

| | SurfaceDiff | ZoomEye |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | SurfaceDiff | – |
| Headquarters | – | – |

### Use cases and capabilities

| | SurfaceDiff | ZoomEye |
|---|---|---|
| DNS Security | Yes | – |
| Port Scanning | Yes | – |
| TLS | Yes | – |
| Subdomain Enumeration | Yes | – |
| Network Scanning | Yes | – |
| Security Scanning | Yes | – |
| Alerting | Yes | – |
| Reconnaissance | Yes | Yes |
| Visibility | Yes | – |
| Web Security | Yes | – |
| OSINT | – | Yes |

### Core features

**SurfaceDiff**

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

**ZoomEye**

No features listed.

## Which one fits you

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

- [SurfaceDiff](https://cybersectools.com/tools/surfacediff) fits if you are a startup.
- [ZoomEye](https://cybersectools.com/tools/zoomeye) fits if you need a free product.

## SurfaceDiff vs ZoomEye FAQ

Common questions when comparing SurfaceDiff vs ZoomEye for external attack surface management.

### What is the difference between SurfaceDiff and ZoomEye?

**SurfaceDiff**: Continuous external attack surface monitoring that shows what changed between scans. Built by SurfaceDiff.

**ZoomEye**: ZoomEye is an advanced cyberspace search engine that provides detailed information on cyberspace assets, including server software and version information, for cybersecurity experts, researchers, and enterprises.

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

### Is SurfaceDiff a good alternative to ZoomEye?

Often, yes. SurfaceDiff and ZoomEye are both External Attack Surface Management products, and both cover Reconnaissance. Key differences: SurfaceDiff is Commercial while ZoomEye is Free. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [SurfaceDiff vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-surfacediff)
- [SurfaceDiff vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff)
- [SurfaceDiff vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-surfacediff)
- [ZoomEye vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-zoomeye)
- [ZoomEye vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-zoomeye)
- [ZoomEye vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-zoomeye)

## Alternatives to each

- [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff)
- [See all ZoomEye alternatives](https://cybersectools.com/alternatives/zoomeye)

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Source: https://cybersectools.com/compare/surfacediff-vs-zoomeye

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

More on SurfaceDiff and ZoomEye: 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