# Cylana EASM vs Sudomy: side-by-side comparison (2026)

[Cylana EASM](https://cybersectools.com/tools/cylana-easm) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Cylana](https://cybersectools.com/companies/cylana). [Sudomy](https://cybersectools.com/tools/sudomy) 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

| | Cylana EASM | Sudomy |
|---|---|---|
| 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 | – | 2,241 |
| Last commit | – | Feb 2024 |
| Company | Cylana | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Cylana EASM | Sudomy |
|---|---|---|
| Network Discovery | Yes | – |
| Subdomain Enumeration | Yes | Yes |
| Attack Detection | Yes | – |
| Reconnaissance | Yes | – |
| Security Scanning | Yes | – |
| Inventory | Yes | – |
| Network Mapping | Yes | – |
| Visibility | Yes | – |
| Vulnerability | Yes | – |
| Digital Risk Protection | Yes | – |
| Bug Bounty | – | Yes |
| Security Research | – | Yes |

### Core features

**Cylana EASM**

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

**Sudomy**

No features listed.

## Which one fits you

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

- [Cylana EASM](https://cybersectools.com/tools/cylana-easm) fits if you want a cloud product.
- [Sudomy](https://cybersectools.com/tools/sudomy) 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.

## Cylana EASM vs Sudomy FAQ

Common questions when comparing Cylana EASM vs Sudomy for external attack surface management.

### What is the difference between Cylana EASM and Sudomy?

**Cylana EASM**: AI-powered EASM platform for digital asset discovery and monitoring. Built by Cylana.

**Sudomy**: A subdomain enumeration tool for bug hunting and pentesting.

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

### Who makes Cylana EASM and Sudomy?

**Cylana EASM** is made by Cylana. **Sudomy** is open-source with 2,241 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Cylana EASM a good alternative to Sudomy?

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

## Related comparisons

- [Cylana EASM vs Attaxion](https://cybersectools.com/compare/attaxion-vs-cylana-easm)
- [Cylana EASM vs Vulneri ASM](https://cybersectools.com/compare/cylana-easm-vs-vulneri-asm-attack-surface-management)
- [Cylana EASM vs MGM Security Partners recon me](https://cybersectools.com/compare/cylana-easm-vs-mgm-security-partners-recon-me)
- [Sudomy vs Attaxion](https://cybersectools.com/compare/attaxion-vs-sudomy)
- [Sudomy vs Vulneri ASM](https://cybersectools.com/compare/sudomy-vs-vulneri-asm-attack-surface-management)
- [Sudomy vs MGM Security Partners recon me](https://cybersectools.com/compare/mgm-security-partners-recon-me-vs-sudomy)

## Alternatives to each

- [See all Cylana EASM alternatives](https://cybersectools.com/alternatives/cylana-easm)
- [See all Sudomy alternatives](https://cybersectools.com/alternatives/sudomy)

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Source: https://cybersectools.com/compare/cylana-easm-vs-sudomy

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

More on Cylana EASM and Sudomy: 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