# GuardEon vs s3viewer: side-by-side comparison (2026)

[GuardEon](https://cybersectools.com/tools/guardeon) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Infilux AppSec](https://cybersectools.com/companies/infilux-appsec). [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

| | GuardEon | 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 | Infilux AppSec | – |
| Headquarters | – | – |

### Use cases and capabilities

| | GuardEon | s3viewer |
|---|---|---|
| Dark Web Monitoring | Yes | – |
| Digital Risk Protection | Yes | – |
| Attack Detection | Yes | – |
| Threat Feed | Yes | – |
| Reconnaissance | Yes | – |
| Supply Chain Security | Yes | – |
| Visibility | Yes | – |
| Cyber Threat Intelligence | Yes | – |
| Azure | – | Yes |
| S3 | – | Yes |
| AWS | – | Yes |
| Misconfiguration | – | Yes |

### Core features

**GuardEon**

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

**s3viewer**

No features 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.

## GuardEon vs s3viewer FAQ

Common questions when comparing GuardEon vs s3viewer for external attack surface management.

### What is the difference between GuardEon and s3viewer?

**GuardEon**: Agentless external attack surface & dark web monitoring platform. Built by Infilux AppSec.

**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 GuardEon and s3viewer?

**GuardEon** is made by Infilux AppSec. **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 GuardEon a good alternative to s3viewer?

Often, yes. GuardEon and s3viewer are both External Attack Surface Management products. Key differences: GuardEon 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

- [GuardEon vs Cyber Exposure Manager](https://cybersectools.com/compare/galileo-security-vs-guardeon)
- [GuardEon vs Cylana EASM](https://cybersectools.com/compare/cylana-easm-vs-guardeon)
- [GuardEon vs FalconTech Threat Hunter](https://cybersectools.com/compare/falcontech-threat-hunter-vs-guardeon)
- [s3viewer vs Cyber Exposure Manager](https://cybersectools.com/compare/galileo-security-vs-s3viewer)
- [s3viewer vs Cylana EASM](https://cybersectools.com/compare/cylana-easm-vs-s3viewer)
- [s3viewer vs FalconTech Threat Hunter](https://cybersectools.com/compare/falcontech-threat-hunter-vs-s3viewer)

## Alternatives to each

- [See all GuardEon alternatives](https://cybersectools.com/alternatives/guardeon)
- [See all s3viewer alternatives](https://cybersectools.com/alternatives/s3viewer)

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Source: https://cybersectools.com/compare/guardeon-vs-s3viewer

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

More on GuardEon 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