# Mercury vs Red Piranha Crystal Eye NDR: side-by-side comparison (2026)

[Mercury](https://cybersectools.com/tools/mercury) is a free [network detection and response](https://cybersectools.com/categories/ndr) solution. [Red Piranha Crystal Eye NDR](https://cybersectools.com/tools/red-piranha-crystal-eye-ndr) is a commercial [network detection and response](https://cybersectools.com/categories/ndr) solution by [Red Piranha](https://cybersectools.com/companies/red-piranha). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | Mercury | Red Piranha Crystal Eye NDR |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Network Detection and Response | Network Detection and Response |
| Verified | No | No |
| Deployment type | On-Premises | Hybrid |
| Company size fit | Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | 501 | – |
| Last commit | Mar 2026 | – |
| Company | – | Red Piranha |
| Headquarters | – | – |

### Use cases and capabilities

| | Mercury | Red Piranha Crystal Eye NDR |
|---|---|---|
| PCAP | Yes | Yes |
| Packet Capture | Yes | – |
| Anomaly Detection | – | Yes |
| Multi Tenancy | – | Yes |

### Core features

**Mercury**

No features listed.

**Red Piranha Crystal Eye NDR**

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

## Which one fits you

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

- [Mercury](https://cybersectools.com/tools/mercury) fits if you need to run it on your own servers, you need a free product and you want an open-source product.
- [Red Piranha Crystal Eye NDR](https://cybersectools.com/tools/red-piranha-crystal-eye-ndr) fits if you need both cloud and on-premises options.

## Mercury vs Red Piranha Crystal Eye NDR FAQ

Common questions when comparing Mercury vs Red Piranha Crystal Eye NDR for network detection and response.

### What is the difference between Mercury and Red Piranha Crystal Eye NDR?

**Mercury**: Network metadata capture and analysis tool.

**Red Piranha Crystal Eye NDR**: NDR solution with threat intelligence, PCAP analysis, and SOC services. Built by Red Piranha.

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

### Who makes Mercury and Red Piranha Crystal Eye NDR?

**Mercury** is open-source with 501 GitHub stars. **Red Piranha Crystal Eye NDR** is made by Red Piranha. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Mercury a good alternative to Red Piranha Crystal Eye NDR?

Often, yes. Mercury and Red Piranha Crystal Eye NDR are both Network Detection and Response products, and both cover PCAP. Key differences: Mercury is Free while Red Piranha Crystal Eye NDR is Commercial, Mercury is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Mercury vs IronNet IronDefense](https://cybersectools.com/compare/ironnet-irondefense-vs-mercury)
- [Mercury vs Viettel VCS-NSM](https://cybersectools.com/compare/mercury-vs-viettel-vcs-nsm)
- [Mercury vs Corelight Open NDR Platform](https://cybersectools.com/compare/corelight-open-ndr-platform-vs-mercury)
- [Red Piranha Crystal Eye NDR vs IronNet IronDefense](https://cybersectools.com/compare/ironnet-irondefense-vs-red-piranha-crystal-eye-ndr)
- [Red Piranha Crystal Eye NDR vs Viettel VCS-NSM](https://cybersectools.com/compare/red-piranha-crystal-eye-ndr-vs-viettel-vcs-nsm)
- [Red Piranha Crystal Eye NDR vs Corelight Open NDR Platform](https://cybersectools.com/compare/corelight-open-ndr-platform-vs-red-piranha-crystal-eye-ndr)

## Alternatives to each

- [See all Mercury alternatives](https://cybersectools.com/alternatives/mercury)
- [See all Red Piranha Crystal Eye NDR alternatives](https://cybersectools.com/alternatives/red-piranha-crystal-eye-ndr)

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Source: https://cybersectools.com/compare/mercury-vs-red-piranha-crystal-eye-ndr

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More on Mercury and Red Piranha Crystal Eye NDR: 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